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[ Upstream commit eec24f2a0d4dc3b1d95a3ccd2feb523ede3ba775 ]
The list [1] of commits doing endianness fixes in USB subsystem is long
due to below quote from USB spec Revision 2.0 from April 27, 2000:
------------
8.1 Byte/Bit Ordering
Multiple byte fields in standard descriptors, requests, and responses
are interpreted as and moved over the bus in little-endian order, i.e.
LSB to MSB.
------------
This commit belongs to the same family.
[1] Example of endianness fixes in USB subsystem:
commit 14e1d56cbea6 ("usb: gadget: f_uac2: endianness fixes.")
commit 42370b821168 ("usb: gadget: f_uac1: endianness fixes.")
commit 63afd5cc7877 ("USB: chaoskey: fix Alea quirk on big-endian hosts")
commit 74098c4ac782 ("usb: gadget: acm: fix endianness in notifications")
commit cdd7928df0d2 ("ACM gadget: fix endianness in notifications")
commit 323ece54e076 ("cdc-wdm: fix endianness bug in debug statements")
commit e102609f1072 ("usb: gadget: uvc: Fix endianness mismatches")
list goes on
Fixes: 132fcb460839 ("usb: gadget: Add Audio Class 2.0 Driver")
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit a39ba90a1cc7010edb0a7132e1b67f3d80b994e9 ]
Fix build errors when built for PPC64:
These variables are only used on PPC32 so they don't need to be
initialized for PPC64.
../drivers/usb/phy/phy-fsl-usb.c: In function 'usb_otg_start':
../drivers/usb/phy/phy-fsl-usb.c:865:3: error: '_fsl_readl' undeclared (first use in this function); did you mean 'fsl_readl'?
_fsl_readl = _fsl_readl_be;
../drivers/usb/phy/phy-fsl-usb.c:865:16: error: '_fsl_readl_be' undeclared (first use in this function); did you mean 'fsl_readl'?
_fsl_readl = _fsl_readl_be;
../drivers/usb/phy/phy-fsl-usb.c:866:3: error: '_fsl_writel' undeclared (first use in this function); did you mean 'fsl_writel'?
_fsl_writel = _fsl_writel_be;
../drivers/usb/phy/phy-fsl-usb.c:866:17: error: '_fsl_writel_be' undeclared (first use in this function); did you mean 'fsl_writel'?
_fsl_writel = _fsl_writel_be;
../drivers/usb/phy/phy-fsl-usb.c:868:16: error: '_fsl_readl_le' undeclared (first use in this function); did you mean 'fsl_readl'?
_fsl_readl = _fsl_readl_le;
../drivers/usb/phy/phy-fsl-usb.c:869:17: error: '_fsl_writel_le' undeclared (first use in this function); did you mean 'fsl_writel'?
_fsl_writel = _fsl_writel_le;
and the sysfs "show" function return type should be ssize_t, not int:
../drivers/usb/phy/phy-fsl-usb.c:1042:49: error: initialization of 'ssize_t (*)(struct device *, struct device_attribute *, char *)' {aka 'long int (*)(struct device *, struct device_attribute *, char *)'} from incompatible pointer type 'int (*)(struct device *, struct device_attribute *, char *)' [-Werror=incompatible-pointer-types]
static DEVICE_ATTR(fsl_usb2_otg_state, S_IRUGO, show_fsl_usb2_otg_state, NULL);
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: linux-usb@vger.kernel.org
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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r8a66597_queue()
[ Upstream commit f36b507c14c4b6e634463a610294e9cb0065c8ea ]
The driver may sleep in an interrupt handler.
The function call path (from bottom to top) in Linux-4.16.7 is:
[FUNC] r8a66597_queue(GFP_KERNEL)
drivers/usb/gadget/udc/r8a66597-udc.c, 1193:
r8a66597_queue in get_status
drivers/usb/gadget/udc/r8a66597-udc.c, 1301:
get_status in setup_packet
drivers/usb/gadget/udc/r8a66597-udc.c, 1381:
setup_packet in irq_control_stage
drivers/usb/gadget/udc/r8a66597-udc.c, 1508:
irq_control_stage in r8a66597_irq (interrupt handler)
To fix this bug, GFP_KERNEL is replaced with GFP_ATOMIC.
This bug is found by my static analysis tool (DSAC-2) and checked by
my code review.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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init_controller()
[ Upstream commit 0602088b10a7c0b4e044a810678ef93d7cc5bf48 ]
The driver may sleep with holding a spinlock.
The function call paths (from bottom to top) in Linux-4.16.7 are:
[FUNC] msleep
drivers/usb/gadget/udc/r8a66597-udc.c, 839:
msleep in init_controller
drivers/usb/gadget/udc/r8a66597-udc.c, 96:
init_controller in r8a66597_usb_disconnect
drivers/usb/gadget/udc/r8a66597-udc.c, 93:
spin_lock in r8a66597_usb_disconnect
[FUNC] msleep
drivers/usb/gadget/udc/r8a66597-udc.c, 835:
msleep in init_controller
drivers/usb/gadget/udc/r8a66597-udc.c, 96:
init_controller in r8a66597_usb_disconnect
drivers/usb/gadget/udc/r8a66597-udc.c, 93:
spin_lock in r8a66597_usb_disconnect
To fix these bugs, msleep() is replaced with mdelay().
This bug is found by my static analysis tool (DSAC-2) and checked by
my code review.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 305886ca87be480ae159908c2affd135c04215cf ]
Some controllers take almost 55ms to complete controller
restore state (CRS).
There is no timeout limit mentioned in xhci specification so
fixing the issue by increasing the timeout limit to 100ms
[reformat code comment -Mathias]
Signed-off-by: Ajay Gupta <ajaykuee@gmail.com>
Signed-off-by: Nagaraj Annaiah <naga.annaiah@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 36eb93509c45d0bdbd8d09a01ab9d857972f5963 ]
Initialize the 'err' variate to remove the build warning,
the warning is shown as below:
drivers/usb/host/xhci-tegra.c: In function 'tegra_xusb_mbox_thread':
drivers/usb/host/xhci-tegra.c:552:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/host/xhci-tegra.c:482:6: note: 'err' was declared here
Fixes: e84fce0f8837 ("usb: xhci: Add NVIDIA Tegra XUSB controller driver")
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 9bb073a053f0464ea74a4d4c331fdb7da58568d6 ]
Freed allocated request for ep0 to prevent memory leak in case when
dwc2_driver_probe() failed.
Cc: Stefan Wahren <stefan.wahren@i2se.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 980900d6318066b9f8314bfb87329a20fd0d1ca4 ]
It happens when enable debug log, if set_alt() returns
USB_GADGET_DELAYED_STATUS and usb_composite_setup_continue()
is called before increasing count of @delayed_status,
so fix it by using spinlock of @cdev->lock.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Tested-by: Jay Hsu <shih-chieh.hsu@mediatek.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 70c3c8cb83856758025c2a211dd022bc0478922a ]
If isoc split in transfer with no data (the length of DATA0
packet is zero), we can't simply return immediately. Because
the DATA0 can be the first transaction or the second transaction
for the isoc split in transaction. If the DATA0 packet with no
data is in the first transaction, we can return immediately.
But if the DATA0 packet with no data is in the second transaction
of isoc split in transaction sequence, we need to increase the
qtd->isoc_frame_index and giveback urb to device driver if needed,
otherwise, the MDATA packet will be lost.
A typical test case is that connect the dwc2 controller with an
usb hs Hub (GL852G-12), and plug an usb fs audio device (Plantronics
headset) into the downstream port of Hub. Then use the usb mic
to record, we can find noise when playback.
In the case, the isoc split in transaction sequence like this:
- SSPLIT IN transaction
- CSPLIT IN transaction
- MDATA packet (176 bytes)
- CSPLIT IN transaction
- DATA0 packet (0 byte)
This patch use both the length of DATA0 and qtd->isoc_split_offset
to check if the DATA0 is in the second transaction.
Tested-by: Gevorg Sahakyan <sahakyan@synopsys.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Minas Harutyunyan hminas@synopsys.com>
Signed-off-by: William Wu <william.wu@rock-chips.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 896e518883f18e601335908192e33426c1f599a4 ]
The clocks have already been explicitly disabled and put as part of
remove() so the runtime suspend callback must not be run when balancing
the runtime PM usage count before returning.
Fixes: 16adc674d0d6 ("usb: dwc3: add generic OF glue layer")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 7bab01ecc6c43da882333c6db39741cb43677004 upstream.
The device exposes AT, NMEA and DIAG ports in both USB configurations.
The patch explicitly ignores interfaces 0 and 1, as they're bound to
other drivers already; and also interface 6, which is a GNSS interface
for which we don't have a driver yet.
T: Bus=01 Lev=03 Prnt=04 Port=00 Cnt=01 Dev#= 18 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 2
P: Vendor=413c ProdID=81d7 Rev=03.18
S: Manufacturer=DELL
S: Product=DW5821e Snapdragon X20 LTE
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 7 Cfg#= 2 Atr=a0 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
I: If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I: If#= 6 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
T: Bus=01 Lev=03 Prnt=04 Port=00 Cnt=01 Dev#= 16 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 2
P: Vendor=413c ProdID=81d7 Rev=03.18
S: Manufacturer=DELL
S: Product=DW5821e Snapdragon X20 LTE
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I: If#= 1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit e60870012e5a35b1506d7b376fddfb30e9da0b27 upstream.
The portdata spinlock can be taken in interrupt context (via
sierra_outdat_callback()).
Disable interrupts when taking the portdata spinlock when discarding
deferred URBs during close to prevent a possible deadlock.
Fixes: 014333f77c0b ("USB: sierra: fix urb and memory leak on disconnect")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
[ johan: amend commit message and add fixes and stable tags ]
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 5d111f5190848d6fb1c414dc57797efea3526a2f ]
wait_for_connected() wait till a port change status to
USB_PORT_STAT_CONNECTION, but this is not possible if
the port is unpowered. The loop will only exit at timeout.
Such case take place if an over-current incident happen
while system is in S3. Then during resume wait_for_connected()
will wait 2s, which may be noticeable by the user.
Signed-off-by: Dominik Bozek <dominikx.bozek@intel.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 56406e017a883b54b339207b230f85599f4d70ae upstream.
The commit 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in a more
supported way") introduced a common way to align DMA allocations.
The code in the commit aligns the struct dma_aligned_buffer but the
actual DMA address pointed by data[0] gets aligned to an offset from
the allocated boundary by the kmalloc_ptr and the old_xfer_buffer
pointers.
This is against the recommendation in Documentation/DMA-API.txt which
states:
Therefore, it is recommended that driver writers who don't take
special care to determine the cache line size at run time only map
virtual regions that begin and end on page boundaries (which are
guaranteed also to be cache line boundaries).
The effect of this is that architectures with non-coherent DMA caches
may run into memory corruption or kernel crashes with Unhandled
kernel unaligned accesses exceptions.
Fix the alignment by positioning the DMA area in front of the allocation
and use memory at the end of the area for storing the orginal
transfer_buffer pointer. This may have the added benefit of increased
performance as the DMA area is now fully aligned on all architectures.
Tested with Lantiq xRX200 (MIPS) and RPi Model B Rev 2 (ARM).
Fixes: 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in a more supported way")
Cc: <stable@vger.kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
[ Antti: backported to 4.9: edited difference in whitespace ]
Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 4d644abf25698362bd33d17c9ddc8f7122c30f17 upstream.
Commit 1b9ba000 ("Allow function drivers to pause control
transfers") states that USB_GADGET_DELAYED_STATUS is only
supported if data phase is 0 bytes.
It seems that when the length is not 0 bytes, there is no
need to explicitly delay the data stage since the transfer
is not completed until the user responds. However, when the
length is 0, there is no data stage and the transfer is
finished once setup() returns, hence there is a need to
explicitly delay completion.
This manifests as the following bugs:
Prior to 946ef68ad4e4 ('Let setup() return
USB_GADGET_DELAYED_STATUS'), when setup is 0 bytes, ffs
would require user to queue a 0 byte request in order to
clear setup state. However, that 0 byte request was actually
not needed and would hang and cause errors in other setup
requests.
After the above commit, 0 byte setups work since the gadget
now accepts empty queues to ep0 to clear the delay, but all
other setups hang.
Fixes: 946ef68ad4e4 ("Let setup() return USB_GADGET_DELAYED_STATUS")
Signed-off-by: Jerry Zhang <zhangjerry@google.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 249a32b7eeb3edb6897dd38f89651a62163ac4ed upstream.
Based on USB2.0 Spec Section 11.12.5,
"If a hub has per-port power switching and per-port current limiting,
an over-current on one port may still cause the power on another port
to fall below specific minimums. In this case, the affected port is
placed in the Power-Off state and C_PORT_OVER_CURRENT is set for the
port, but PORT_OVER_CURRENT is not set."
so let's check C_PORT_OVER_CURRENT too for over current condition.
Fixes: 08d1dec6f405 ("usb:hub set hub->change_bits when over-current happens")
Cc: <stable@vger.kernel.org>
Tested-by: Alessandro Antenucci <antenucci@korg.it>
Signed-off-by: Bin Liu <b-liu@ti.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1445cbe476fc3dd09c0b380b206526a49403c071 upstream.
The device (a POS terminal) implements CDC ACM, but has not union
descriptor.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Oliver Neukum <oneukum@suse.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 229bc19fd7aca4f37964af06e3583c1c8f36b5d6 upstream.
Don't rely on event interrupt (EINT) bit alone to detect pending port
change in resume. If no change event is detected the host may be suspended
again, oterwise roothubs are resumed.
There is a lag in xHC setting EINT. If we don't notice the pending change
in resume, and the controller is runtime suspeded again, it causes the
event handler to assume host is dead as it will fail to read xHC registers
once PCI puts the controller to D3 state.
[ 268.520969] xhci_hcd: xhci_resume: starting port polling.
[ 268.520985] xhci_hcd: xhci_hub_status_data: stopping port polling.
[ 268.521030] xhci_hcd: xhci_suspend: stopping port polling.
[ 268.521040] xhci_hcd: // Setting command ring address to 0x349bd001
[ 268.521139] xhci_hcd: Port Status Change Event for port 3
[ 268.521149] xhci_hcd: resume root hub
[ 268.521163] xhci_hcd: port resume event for port 3
[ 268.521168] xhci_hcd: xHC is not running.
[ 268.521174] xhci_hcd: handle_port_status: starting port polling.
[ 268.596322] xhci_hcd: xhci_hc_died: xHCI host controller not responding, assume dead
The EINT lag is described in a additional note in xhci specs 4.19.2:
"Due to internal xHC scheduling and system delays, there will be a lag
between a change bit being set and the Port Status Change Event that it
generated being written to the Event Ring. If SW reads the PORTSC and
sees a change bit set, there is no guarantee that the corresponding Port
Status Change Event has already been written into the Event Ring."
Cc: <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 313db3d6488bb03b61b99de9dbca061f1fd838e1 upstream.
The > should be >= here so that we don't read one element beyond the end
of the ep->stream_info->stream_rings[] array.
Fixes: e9df17eb1408 ("USB: xhci: Correct assumptions about number of rings per endpoint.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit bba57eddadda936c94b5dccf73787cb9e159d0a5 upstream.
Corsair Strafe appears to suffer from the same issues
as the Corsair Strafe RGB.
Apply the same quirks (control message delay and init delay)
that the RGB version has to 1b1c:1b15.
With these quirks in place the keyboard works correctly upon
booting the system, and no longer requires reattaching the device.
Signed-off-by: Nico Sneck <snecknico@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 794744abfffef8b1f3c0c8a4896177d6d13d653d upstream.
Add missing transfer-length sanity check to the status-register
completion handler to avoid leaking bits of uninitialised slab data to
user space.
Fixes: 3f5429746d91 ("USB: Moschip 7840 USB-Serial Driver")
Cc: stable <stable@vger.kernel.org> # 2.6.19
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f1e255d60ae66a9f672ff9a207ee6cd8e33d2679 upstream.
In general, accessing userspace memory beyond the length of the supplied
buffer in VFS read/write handlers can lead to both kernel memory corruption
(via kernel_read()/kernel_write(), which can e.g. be triggered via
sys_splice()) and privilege escalation inside userspace.
Fix it by using simple_read_from_buffer() instead of custom logic.
Fixes: 6bc235a2e24a ("USB: add driver for Meywa-Denki & Kayac YUREX")
Signed-off-by: Jann Horn <jannh@google.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 01b3cdfca263a17554f7b249d20a247b2a751521 upstream.
Fix broken modem-status error handling which could lead to bits of slab
data leaking to user space.
Fixes: 3b36a8fd6777 ("usb: fix uninitialized variable warning in keyspan_pda")
Cc: stable <stable@vger.kernel.org> # 2.6.27
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 367b160fe4717c14a2a978b6f9ffb75a7762d3ed upstream.
There are two versions of the Qivicon Zigbee stick in circulation. This
adds the second USB ID to the cp210x driver.
Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit e33eab9ded328ccc14308afa51b5be7cbe78d30b upstream.
The "r" variable is an int and "bufsize" is an unsigned int so the
comparison is type promoted to unsigned. If usb_control_msg() returns a
negative that is treated as a high positive value and the error handling
doesn't work.
Fixes: 2d5a9c72d0c4 ("USB: serial: ch341: fix control-message error handling")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8760675932ddb614e83702117d36ea644050c609 upstream.
The dwc2_get_ls_map() use ttport to reference into the
bitmap if we're on a multi_tt hub. But the bitmaps index
from 0 to (hub->maxchild - 1), while the ttport index from
1 to hub->maxchild. This will cause invalid memory access
when the number of ttport is hub->maxchild.
Without this patch, I can easily meet a Kernel panic issue
if connect a low-speed USB mouse with the max port of FE2.1
multi-tt hub (1a40:0201) on rk3288 platform.
Fixes: 9f9f09b048f5 ("usb: dwc2: host: Totally redo the microframe scheduler")
Cc: <stable@vger.kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Minas Harutyunyan hminas@synopsys.com>
Signed-off-by: William Wu <william.wu@rock-chips.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 2f839823382748664b643daa73f41ee0cc01ced6 upstream.
Silicon Labs defines alternative VID/PID pairs for some chips that when
used will automatically install drivers for Windows users without manual
intervention. Unfortunately, these IDs are not recognized by the Linux
module, so using these IDs improves user experience on one platform but
degrades it on Linux. This patch addresses this problem.
Signed-off-by: Karoly Pados <pados@pados.hu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 24160628a34af962ac99f2f58e547ac3c4cbd26f upstream.
Add device ids for CESINEL products.
Reported-by: Carlos Barcala Lara <cabl@cesinel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 4a762569a2722b8a48066c7bacf0e1dc67d17fa1 upstream.
Uniden UBC125 radio scanner has USB interface which fails to work
with cdc_acm driver:
usb 1-1.5: new full-speed USB device number 4 using xhci_hcd
cdc_acm 1-1.5:1.0: Zero length descriptor references
cdc_acm: probe of 1-1.5:1.0 failed with error -22
Adding the NO_UNION_NORMAL quirk for the device fixes the issue:
usb 1-4: new full-speed USB device number 15 using xhci_hcd
usb 1-4: New USB device found, idVendor=1965, idProduct=0018
usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-4: Product: UBC125XLT
usb 1-4: Manufacturer: Uniden Corp.
usb 1-4: SerialNumber: 0001
cdc_acm 1-4:1.0: ttyACM0: USB ACM device
`lsusb -v` of the device:
Bus 001 Device 015: ID 1965:0018 Uniden Corporation
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 2 Communications
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x1965 Uniden Corporation
idProduct 0x0018
bcdDevice 0.01
iManufacturer 1 Uniden Corp.
iProduct 2 UBC125XLT
iSerial 3 0001
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 48
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2 Communications
bInterfaceSubClass 2 Abstract (modem)
bInterfaceProtocol 0 None
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x87 EP 7 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10 CDC Data
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Device Status: 0x0000
(Bus Powered)
Signed-off-by: Houston Yaroschoff <hstn@4ever3.net>
Cc: stable <stable@vger.kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 6e01827ed93947895680fbdad68c072a0f4e2450 upstream.
Some low-speed and full-speed devices (for example, bluetooth)
do not have time to initialize. For them, ETIMEDOUT is a valid error.
We need to give them another try. Otherwise, they will
never be initialized correctly and in dmesg will be messages
"Bluetooth: hci0 command 0x1002 tx timeout" or similars.
Fixes: 264904ccc33c ("usb: retry reset if a device times out")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Maxim Moseychuk <franchesko.salias.hudro.pedros@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit ebc3dd688cd988754a304147753b13e58de1b5a1 ]
It has been observed that writing 0xF2 to the power register while it
reads as 0xF4 results in the register having the value 0xF0, i.e. clearing
RESUME and setting SUSPENDM in one go does not work. It might also violate
the USB spec to transition directly from resume to suspend, especially
when not taking T_DRSMDN into account. But this is what happens when a
remote wakeup occurs between SetPortFeature USB_PORT_FEAT_SUSPEND on the
root hub and musb_bus_suspend being called.
This commit returns -EBUSY when musb_bus_suspend is called while remote
wakeup is signalled and thus avoids to reset the RESUME bit. Ignoring
this error when musb_port_suspend is called from musb_hub_control is ok.
Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit bd6bce004d78b867ba0c6d3712f1c5b50398af9a upstream.
This patch fixes an issue that reconnection is possible to fail
because unexpected state handling happens by the irqs. To fix the issue,
the driver disables the controller's irqs when disconnected.
Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller")
Cc: <stable@vger.kernel.org> # v4.5+
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit ca7d9515d0e6825351ce106066cea1f60e40b1c8 upstream.
The "G-Drive" (sold by G-Technology) external USB 3.0 drive
hangs on write access under UAS and usb-storage:
[ 136.079121] sd 15:0:0:0: [sdi] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 136.079144] sd 15:0:0:0: [sdi] tag#0 Sense Key : Illegal Request [current]
[ 136.079152] sd 15:0:0:0: [sdi] tag#0 Add. Sense: Invalid field in cdb
[ 136.079176] sd 15:0:0:0: [sdi] tag#0 CDB: Write(16) 8a 08 00 00 00 00 00 00 00 00 00 00 00 08 00 00
[ 136.079180] print_req_error: critical target error, dev sdi, sector 0
[ 136.079183] Buffer I/O error on dev sdi, logical block 0, lost sync page write
[ 136.173148] EXT4-fs (sdi): mounted filesystem with ordered data mode. Opts: (null)
[ 140.583998] sd 15:0:0:0: [sdi] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 140.584010] sd 15:0:0:0: [sdi] tag#0 Sense Key : Illegal Request [current]
[ 140.584016] sd 15:0:0:0: [sdi] tag#0 Add. Sense: Invalid field in cdb
[ 140.584022] sd 15:0:0:0: [sdi] tag#0 CDB: Write(16) 8a 08 00 00 00 00 e8 c4 00 18 00 00 00 08 00 00
[ 140.584025] print_req_error: critical target error, dev sdi, sector 3905159192
[ 140.584044] print_req_error: critical target error, dev sdi, sector 3905159192
[ 140.584052] Aborting journal on device sdi-8.
The proposed patch adds compatibility quirks. Because the drive requires two
quirks (one to work with UAS, and another to work with usb-storage), adding this
under unusual_devs.h and not just unusual_uas.h so kernels compiled without UAS
receive the quirk. With the patch, the drive works reliably on UAS and usb-
storage.
(tested on NEC Corporation uPD720200 USB 3.0 host controller).
Signed-off-by: Alexander Kappner <agk@godking.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8c4e97ddfe73a0958bb0abf7e6a3bc4cc3e04936 upstream.
The ALWAYS_SYNC flag is currently honored by the usb-storage driver but not UAS
and is required to work around devices that become unstable upon being
queried for cache. This code is taken straight from:
drivers/usb/storage/scsiglue.c:284
Signed-off-by: Alexander Kappner <agk@godking.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a0d6ec88090d7b1b008429c44532a388e29bb1bd upstream.
pdev_nr and rhport can be controlled by user-space, hence leading to
a potential exploitation of the Spectre variant 1 vulnerability.
This issue was detected with the help of Smatch:
drivers/usb/usbip/vhci_sysfs.c:238 detach_store() warn: potential spectre issue 'vhcis'
drivers/usb/usbip/vhci_sysfs.c:328 attach_store() warn: potential spectre issue 'vhcis'
drivers/usb/usbip/vhci_sysfs.c:338 attach_store() warn: potential spectre issue 'vhci->vhci_hcd_ss->vdev'
drivers/usb/usbip/vhci_sysfs.c:340 attach_store() warn: potential spectre issue 'vhci->vhci_hcd_hs->vdev'
Fix this by sanitizing pdev_nr and rhport before using them to index
vhcis and vhci->vhci_hcd_ss->vdev respectively.
Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].
[1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 009615ab7fd4e43b82a38e4e6adc5e23c1ee567f upstream.
On sparc32, tcflag_t is unsigned long, unlike all other architectures:
drivers/usb/serial/cp210x.c: In function 'cp210x_get_termios':
drivers/usb/serial/cp210x.c:717:3: warning: passing argument 2 of 'cp210x_get_termios_port' from incompatible pointer type
cp210x_get_termios_port(tty->driver_data,
^
drivers/usb/serial/cp210x.c:35:13: note: expected 'unsigned int *' but argument is of type 'tcflag_t *'
static void cp210x_get_termios_port(struct usb_serial_port *port,
^
Consistently use tcflag_t to fix this.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 5d6ae4f0da8a64a185074dabb1b2f8c148efa741 ]
When handling an OS descriptor request, one of the first operations is
to zero out the request buffer using the wLength from the setup packet.
There is no bounds checking, so a wLength > 4096 would clobber memory
adjacent to the request buffer. Fix this by taking the min of wLength
and the request buffer length prior to the memset. While at it, define
the buffer length in a header file so that magic numbers don't appear
throughout the code.
When returning data to the host, the data length should be the min of
the wLength and the valid data we have to return. Currently we are
returning wLength, thus requests for a wLength greater than the amount
of data in the OS descriptor buffer would return invalid (albeit zero'd)
data following the valid descriptor data. Fix this by counting the
number of bytes when constructing the data and using this when
determining the length of the request.
Signed-off-by: Chris Dickens <christopher.a.dickens@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit ac87e560f7c0f91b62012e9a159c0681a373b922 ]
Due to a typo, the mask was destroyed by a comparison instead of a bit
shift.
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 4058ebf33cb0be88ca516f968eda24ab7b6b93e4 ]
When using a AIO read() operation on the function FS gadget driver a URB is
submitted asynchronously and on URB completion the received data is copied
to the userspace buffer associated with the read operation.
This is done from a kernel worker thread invoking copy_to_user() (through
copy_to_iter()). And while the user space process memory is made available
to the kernel thread using use_mm(), some architecture require in addition
to this that the operation runs with USER_DS set. Otherwise the userspace
memory access will fail.
For example on ARM64 with Privileged Access Never (PAN) and User Access
Override (UAO) enabled the following crash occurs.
Internal error: Accessing user space memory with fs=KERNEL_DS: 9600004f [#1] SMP
Modules linked in:
CPU: 2 PID: 1636 Comm: kworker/2:1 Not tainted 4.9.0-04081-g8ab2dfb-dirty #487
Hardware name: ZynqMP ZCU102 Rev1.0 (DT)
Workqueue: events ffs_user_copy_worker
task: ffffffc87afc8080 task.stack: ffffffc87a00c000
PC is at __arch_copy_to_user+0x190/0x220
LR is at copy_to_iter+0x78/0x3c8
[...]
[<ffffff800847b790>] __arch_copy_to_user+0x190/0x220
[<ffffff80086f25d8>] ffs_user_copy_worker+0x70/0x130
[<ffffff80080b8c64>] process_one_work+0x1dc/0x460
[<ffffff80080b8f38>] worker_thread+0x50/0x4b0
[<ffffff80080bf5a0>] kthread+0xd8/0xf0
[<ffffff8008083680>] ret_from_fork+0x10/0x50
Address this by placing a set_fs(USER_DS) before of the copy operation
and revert it again once the copy operation has finished.
This patch is analogous to commit d7ffde35e31a ("vhost: use USER_DS in
vhost_worker thread") which addresses the same underlying issue.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 946ef68ad4e45aa048a5fb41ce8823ed29da866a ]
Some UDC drivers (like the DWC3) expect that the response to a setup()
request is queued from within the setup function itself so that it is
available as soon as setup() has completed.
Upon receiving a setup request the function fs driver creates an event that
is made available to userspace. And only once userspace has acknowledged
that event the response to the setup request is queued.
So it violates the requirement of those UDC drivers and random failures can
be observed. This is basically a race condition and if userspace is able to
read the event and queue the response fast enough all is good. But if it is
not, for example because other processes are currently scheduled to run,
the USB host that sent the setup request will observe an error.
To avoid this the gadget framework provides the USB_GADGET_DELAYED_STATUS
return code. If a setup() callback returns this value the UDC driver is
aware that response is not yet available and can uses the appropriate
methods to handle this case.
Since in the case of function fs the response will never be available when
the setup() function returns make sure that this status code is used.
This fixed random occasional failures that were previously observed on a
DWC3 based system under high system load.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 92a8dd26464e1f21f1d869ec53717bd2c1200d63 ]
Added missing GUSBCFG programming in host mode, which fixes
transaction errors issue on HiKey and Altera Cyclone V boards.
These field even if was programmed in device mode (in function
dwc2_hsotg_core_init_disconnected()) will be resetting to POR values
after core soft reset applied.
So, each time when switching to host mode required to set this field
to correct value.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 12814a3f8f9b247531d7863170cc82b3fe4218fd ]
The maximum value that unsigned char can hold is 255, meanwhile
the maximum value of interval is 2^(bIntervalMax-1)=2^15.
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit a400efe455f7b61ac9a801ac8d0d01f8c8d82dd5 ]
set udev->slot_id to zero when disabling and freeing the xhci slot.
Prevents usb core from calling xhci with a stale slot id.
xHC controller may be reset during resume to recover from some error.
All slots are unusable as they are disabled and freed.
xhci driver starts slot enumeration again from 1 in the order they are
enabled. In the worst case a stale udev->slot_id for one device matches
a newly enabled slot_id for a different device, causing us to
perform a action on the wrong device.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 0cab8d26d6e5e053b2bed3356992aaa71dc93628 ]
Update two GTXFIFOSIZ bit fields for the DWC_usb31 controller. TXFDEP
is a 15-bit value instead of 16-bit value, and bit 15 is TXFRAMNUM.
The GTXFIFOSIZ register for DWC_usb31 is as follows:
+-------+-----------+----------------------------------+
| BITS | Name | Description |
+=======+===========+==================================+
| 31:16 | TXFSTADDR | Transmit FIFOn RAM Start Address |
| 15 | TXFRAMNUM | Asynchronous/Periodic TXFIFO |
| 14:0 | TXFDEP | TXFIFO Depth |
+-------+-----------+----------------------------------+
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit fab3833338779e1e668bd58d1f76d601657304b8 ]
>From DWC_usb31 programming guide section 1.3.2, once DWC3_DCTL_CSFTRST
bit is cleared, we must wait at least 50ms before accessing the PHY
domain (synchronization delay).
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit d6c931ea32dc08ac2665bb5f009f9c40ad1bbdb3 ]
Scatter-gather needs to be disabled when using dma_declare_coherent_memory
and HCD_LOCAL_MEM. Andrea Righi made the equivalent fix for EHCI drivers
in commit 4307a28eb01284 "USB: EHCI: fix NULL pointer dererence in HCDs
that use HCD_LOCAL_MEM".
The following NULL pointer WARN_ON_ONCE triggered with OHCI drivers:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 49 at drivers/usb/core/hcd.c:1379 hcd_alloc_coherent+0x4c/0xc8
Modules linked in:
CPU: 0 PID: 49 Comm: usb-storage Not tainted 4.15.0+ #1014
Stack : 00000000 00000000 805a78d2 0000003a 81f5c2cc 8053d367 804d77fc 00000031
805a3a08 00000563 81ee9400 805a0000 00000000 10058c00 81f61b10 805c0000
00000000 00000000 805a0000 00d9038e 00000004 803ee818 00000006 312e3420
805c0000 00000000 00000073 81f61958 00000000 00000000 802eb380 804fd538
00000009 00000563 81ee9400 805a0000 00000002 80056148 00000000 805a0000
...
Call Trace:
[<578af360>] show_stack+0x74/0x104
[<2f3702c6>] __warn+0x118/0x120
[<ae93fc9e>] warn_slowpath_null+0x44/0x58
[<a891a517>] hcd_alloc_coherent+0x4c/0xc8
[<3578fa36>] usb_hcd_map_urb_for_dma+0x4d8/0x534
[<110bc94c>] usb_hcd_submit_urb+0x82c/0x834
[<02eb5baf>] usb_sg_wait+0x14c/0x1a0
[<ccd09e85>] usb_stor_bulk_transfer_sglist.part.1+0xac/0x124
[<87a5c34c>] usb_stor_bulk_srb+0x40/0x60
[<ff1792ac>] usb_stor_Bulk_transport+0x160/0x37c
[<b9e2709c>] usb_stor_invoke_transport+0x3c/0x500
[<004754f4>] usb_stor_control_thread+0x258/0x28c
[<22edf42e>] kthread+0x134/0x13c
[<a419ffd0>] ret_from_kernel_thread+0x14/0x1c
---[ end trace bcdb825805eefdcc ]---
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit b86b8eb6fecb5a4bac1ed0ca925c4082a61ea6e9 ]
ACM driver may accept data to transmit while system is not fully
resumed. In this case ACM driver buffers data and prepare URBs
on usb anchor list.
There is a little chance that two tasks put a char and initiate
acm_tty_flush_chars(). In such a case, driver will put one URB
twice on usb anchor list.
This patch also reset length of data before resue of a buffer.
This not only prevent sending rubbish, but also lower risc of race.
Without this patch we hit following kernel panic in one of our
stabilty/stress tests.
[ 46.884442] *list_add double add*: new=ffff9b2ab7289330, prev=ffff9b2ab7289330, next=ffff9b2ab81e28e0.
[ 46.884476] Modules linked in: hci_uart btbcm bluetooth rfkill_gpio igb_avb(O) cfg80211 snd_soc_sst_bxt_tdf8532 snd_soc_skl snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_sst_acpi snd_soc_sst_match snd_hda_ext_core snd_hda_core trusty_timer trusty_wall trusty_log trusty_virtio trusty_ipc trusty_mem trusty_irq trusty virtio_ring virtio intel_ipu4_mmu_bxtB0 lib2600_mod_bxtB0 intel_ipu4_isys_mod_bxtB0 lib2600psys_mod_bxtB0 intel_ipu4_psys_mod_bxtB0 intel_ipu4_mod_bxtB0 intel_ipu4_wrapper_bxtB0 intel_ipu4_acpi videobuf2_dma_contig as3638 dw9714 lm3643 crlmodule smiapp smiapp_pll
[ 46.884480] CPU: 1 PID: 33 Comm: kworker/u8:1 Tainted: G U W O 4.9.56-quilt-2e5dc0ac-g618ed69ced6e-dirty #4
[ 46.884489] Workqueue: events_unbound flush_to_ldisc
[ 46.884494] ffffb98ac012bb08 ffffffffad3e82e5 ffffb98ac012bb58 0000000000000000
[ 46.884497] ffffb98ac012bb48 ffffffffad0a23d1 00000024ad6374dd ffff9b2ab7289330
[ 46.884500] ffff9b2ab81e28e0 ffff9b2ab7289330 0000000000000002 0000000000000000
[ 46.884501] Call Trace:
[ 46.884507] [<ffffffffad3e82e5>] dump_stack+0x67/0x92
[ 46.884511] [<ffffffffad0a23d1>] __warn+0xd1/0xf0
[ 46.884513] [<ffffffffad0a244f>] warn_slowpath_fmt+0x5f/0x80
[ 46.884516] [<ffffffffad407443>] __list_add+0xb3/0xc0
[ 46.884521] [<ffffffffad71133c>] *usb_anchor_urb*+0x4c/0xa0
[ 46.884524] [<ffffffffad782c6f>] *acm_tty_flush_chars*+0x8f/0xb0
[ 46.884527] [<ffffffffad782cd1>] *acm_tty_put_char*+0x41/0x100
[ 46.884530] [<ffffffffad4ced34>] tty_put_char+0x24/0x40
[ 46.884533] [<ffffffffad4d3bf5>] do_output_char+0xa5/0x200
[ 46.884535] [<ffffffffad4d3e98>] __process_echoes+0x148/0x290
[ 46.884538] [<ffffffffad4d654c>] n_tty_receive_buf_common+0x57c/0xb00
[ 46.884541] [<ffffffffad4d6ae4>] n_tty_receive_buf2+0x14/0x20
[ 46.884543] [<ffffffffad4d9662>] tty_ldisc_receive_buf+0x22/0x50
[ 46.884545] [<ffffffffad4d9c05>] flush_to_ldisc+0xc5/0xe0
[ 46.884549] [<ffffffffad0bcfe8>] process_one_work+0x148/0x440
[ 46.884551] [<ffffffffad0bdc19>] worker_thread+0x69/0x4a0
[ 46.884554] [<ffffffffad0bdbb0>] ? max_active_store+0x80/0x80
[ 46.884556] [<ffffffffad0c2e10>] kthread+0x110/0x130
[ 46.884559] [<ffffffffad0c2d00>] ? kthread_park+0x60/0x60
[ 46.884563] [<ffffffffadad9917>] ret_from_fork+0x27/0x40
[ 46.884566] ---[ end trace 3bd599058b8a9eb3 ]---
Signed-off-by: Dominik Bozek <dominikx.bozek@intel.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 755d739534f998d92e348fba8ffb0478416576e7 ]
We should call dwc2_hsotg_enqueue_setup() after properly
setting lx_state. Because it may cause error-out from
dwc2_hsotg_enqueue_setup() due to wrong value in lx_state.
Issue can be reproduced by loading driver while connected
A-Connector (start in A-HOST mode) then disconnect A-Connector
to switch to B-DEVICE.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 20c63f4089cceab803438c383631963e34c4d8e5 ]
Clang reports the following warning:
drivers/usb/gadget/udc/fsl_udc_core.c:1312:10: warning: address of array
'ep->name' will always evaluate to 'true' [-Wpointer-bool-conversion]
if (ep->name)
~~ ~~~~^~~~
It seems that the authors intention was to check if the ep has been
configured through struct_ep_setup. Check whether struct usb_ep name
pointer has been set instead.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit e74bd4d358e5455233f1dcc3975425905b270b91 ]
Driver is tracing usb_request after freeing it.
Fix it by changing the order.
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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