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authorShuah Khan <shuahkh@osg.samsung.com>2018-01-26 11:56:50 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-02-25 11:03:38 +0100
commita909d246e00574cfb93d995747ac16c6bf80558c (patch)
tree5bb0e98913a4a68aabae45a66f22fa222583d5f3 /drivers
parent67315b2b2905f99da06f58debeac81da09a92d36 (diff)
usbip: keep usbip_device sockfd state in sync with tcp_socket
commit 009f41aed4b3e11e6dc1e3c07377a10c20f1a5ed upstream. 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')
-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 ec38370ffcab..0931f3271119 100644
--- a/drivers/usb/usbip/stub_dev.c
+++ b/drivers/usb/usbip/stub_dev.c
@@ -87,6 +87,7 @@ static ssize_t store_sockfd(struct device *dev, struct device_attribute *attr,
goto err;
sdev->ud.tcp_socket = socket;
+ sdev->ud.sockfd = sockfd;
spin_unlock_irq(&sdev->ud.lock);
@@ -186,6 +187,7 @@ 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 */
@@ -280,6 +282,7 @@ 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 2d96bfd34138..4d68a1e9e878 100644
--- a/drivers/usb/usbip/vhci_hcd.c
+++ b/drivers/usb/usbip/vhci_hcd.c
@@ -797,6 +797,7 @@ 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");
@@ -844,6 +845,7 @@ 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;