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authorShuah Khan <shuahkh@osg.samsung.com>2018-01-26 21:56:50 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-02-15 20:43:57 +0300
commit009f41aed4b3e11e6dc1e3c07377a10c20f1a5ed (patch)
treed99166ff52d5df49fde2d0dec55f32a0ec393e27 /drivers/usb/usbip
parentb2685bdacdaab065c172b97b55ab46c6be77a037 (diff)
downloadlinux-009f41aed4b3e11e6dc1e3c07377a10c20f1a5ed.tar.xz
usbip: keep usbip_device sockfd state in sync with tcp_socket
Keep usbip_device sockfd state in sync with tcp_socket. When tcp_socket is reset to null, reset sockfd to -1 to keep it in sync. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/usbip')
-rw-r--r--drivers/usb/usbip/stub_dev.c3
-rw-r--r--drivers/usb/usbip/vhci_hcd.c2
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c
index 49e552472c3f..dd8ef36ab10e 100644
--- a/drivers/usb/usbip/stub_dev.c
+++ b/drivers/usb/usbip/stub_dev.c
@@ -73,6 +73,7 @@ static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *a
goto err;
sdev->ud.tcp_socket = socket;
+ sdev->ud.sockfd = sockfd;
spin_unlock_irq(&sdev->ud.lock);
@@ -172,6 +173,7 @@ static void stub_shutdown_connection(struct usbip_device *ud)
if (ud->tcp_socket) {
sockfd_put(ud->tcp_socket);
ud->tcp_socket = NULL;
+ ud->sockfd = -1;
}
/* 3. free used data */
@@ -266,6 +268,7 @@ static struct stub_device *stub_device_alloc(struct usb_device *udev)
sdev->ud.status = SDEV_ST_AVAILABLE;
spin_lock_init(&sdev->ud.lock);
sdev->ud.tcp_socket = NULL;
+ sdev->ud.sockfd = -1;
INIT_LIST_HEAD(&sdev->priv_init);
INIT_LIST_HEAD(&sdev->priv_tx);
diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
index c3e1008aa491..20e3d4609583 100644
--- a/drivers/usb/usbip/vhci_hcd.c
+++ b/drivers/usb/usbip/vhci_hcd.c
@@ -984,6 +984,7 @@ static void vhci_shutdown_connection(struct usbip_device *ud)
if (vdev->ud.tcp_socket) {
sockfd_put(vdev->ud.tcp_socket);
vdev->ud.tcp_socket = NULL;
+ vdev->ud.sockfd = -1;
}
pr_info("release socket\n");
@@ -1030,6 +1031,7 @@ static void vhci_device_reset(struct usbip_device *ud)
if (ud->tcp_socket) {
sockfd_put(ud->tcp_socket);
ud->tcp_socket = NULL;
+ ud->sockfd = -1;
}
ud->status = VDEV_ST_NULL;