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author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-07-06 00:08:24 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-07-06 00:08:24 +0300 |
commit | c932ed0adb09a7fa6d6649ee04dd78c83ab07ada (patch) | |
tree | 02b055bd7b350e7aca9104a9c69330896bb6382b /drivers/tty/nozomi.c | |
parent | a16d8644bad461bb073b92e812080ea6715ddf2b (diff) | |
parent | 15279ebe99d7c6142d9f1a6ae4ded66c0f168678 (diff) | |
download | linux-c932ed0adb09a7fa6d6649ee04dd78c83ab07ada.tar.xz |
Merge tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial updates from Greg KH:
"Here is the big set of tty and serial driver patches for 5.14-rc1.
A bit more than normal, but nothing major, lots of cleanups.
Highlights are:
- lots of tty api cleanups and mxser driver cleanups from Jiri
- build warning fixes
- various serial driver updates
- coding style cleanups
- various tty driver minor fixes and updates
- removal of broken and disable r3964 line discipline (finally!)
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (227 commits)
serial: mvebu-uart: remove unused member nb from struct mvebu_uart
arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
dt-bindings: mvebu-uart: fix documentation
serial: mvebu-uart: correctly calculate minimal possible baudrate
serial: mvebu-uart: do not allow changing baudrate when uartclk is not available
serial: mvebu-uart: fix calculation of clock divisor
tty: make linux/tty_flip.h self-contained
serial: Prefer unsigned int to bare use of unsigned
serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs
serial: qcom_geni_serial: use DT aliases according to DT bindings
Revert "tty: serial: Add UART driver for Cortina-Access platform"
tty: serial: Add UART driver for Cortina-Access platform
MAINTAINERS: add me back as mxser maintainer
mxser: Documentation, fix typos
mxser: Documentation, make the docs up-to-date
mxser: Documentation, remove traces of callout device
mxser: introduce mxser_16550A_or_MUST helper
mxser: rename flags to old_speed in mxser_set_serial_info
mxser: use port variable in mxser_set_serial_info
mxser: access info->MCR under info->slock
...
Diffstat (limited to 'drivers/tty/nozomi.c')
-rw-r--r-- | drivers/tty/nozomi.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c index 9a2d78ace49b..0c80f25c8c3d 100644 --- a/drivers/tty/nozomi.c +++ b/drivers/tty/nozomi.c @@ -1378,7 +1378,7 @@ static int nozomi_card_init(struct pci_dev *pdev, NOZOMI_NAME, dc); if (unlikely(ret)) { dev_err(&pdev->dev, "can't request irq %d\n", pdev->irq); - goto err_free_kfifo; + goto err_free_all_kfifo; } DBG1("base_addr: %p", dc->base_addr); @@ -1416,12 +1416,15 @@ static int nozomi_card_init(struct pci_dev *pdev, return 0; err_free_tty: - for (i = 0; i < MAX_PORT; ++i) { + for (i--; i >= 0; i--) { tty_unregister_device(ntty_driver, dc->index_start + i); tty_port_destroy(&dc->port[i].port); } + free_irq(pdev->irq, dc); +err_free_all_kfifo: + i = MAX_PORT; err_free_kfifo: - for (i = 0; i < MAX_PORT; i++) + for (i--; i >= PORT_MDM; i--) kfifo_free(&dc->port[i].fifo_ul); err_free_sbuf: kfree(dc->send_buf); @@ -1636,10 +1639,10 @@ static int ntty_write(struct tty_struct *tty, const unsigned char *buffer, * If the port is unplugged report lots of room and let the bits * dribble away so we don't block anything. */ -static int ntty_write_room(struct tty_struct *tty) +static unsigned int ntty_write_room(struct tty_struct *tty) { struct port *port = tty->driver_data; - int room = 4096; + unsigned int room = 4096; const struct nozomi *dc = get_dc_by_tty(tty); if (dc) @@ -1776,20 +1779,15 @@ static void ntty_throttle(struct tty_struct *tty) } /* Returns number of chars in buffer, called by tty layer */ -static s32 ntty_chars_in_buffer(struct tty_struct *tty) +static unsigned int ntty_chars_in_buffer(struct tty_struct *tty) { struct port *port = tty->driver_data; struct nozomi *dc = get_dc_by_tty(tty); - s32 rval = 0; - if (unlikely(!dc || !port)) { - goto exit_in_buffer; - } - - rval = kfifo_len(&port->fifo_ul); + if (unlikely(!dc || !port)) + return 0; -exit_in_buffer: - return rval; + return kfifo_len(&port->fifo_ul); } static const struct tty_port_operations noz_tty_port_ops = { |