If there is no int_urb there is no need to do a clean stop.
Also we avoid calling usb_kill_urb(NULL). It is properly handled by the
usb framework, but it is not polite.
Now that we are at it, fix the code style in uvc_status_start() for
consistency.
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Reviewed-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
---
drivers/media/usb/uvc/uvc_status.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/media/usb/uvc/uvc_status.c b/drivers/media/usb/uvc/uvc_status.c
index d8d5b327693f..c7901ac32c26 100644
--- a/drivers/media/usb/uvc/uvc_status.c
+++ b/drivers/media/usb/uvc/uvc_status.c
@@ -308,7 +308,7 @@ static int uvc_status_start(struct uvc_device *dev, gfp_t flags)
{
lockdep_assert_held(&dev->status_lock);
- if (dev->int_urb == NULL)
+ if (!dev->int_urb)
return 0;
return usb_submit_urb(dev->int_urb, flags);
@@ -320,6 +320,9 @@ static void uvc_status_stop(struct uvc_device *dev)
lockdep_assert_held(&dev->status_lock);
+ if (!dev->int_urb)
+ return;
+
/*
* Prevent the asynchronous control handler from requeing the URB. The
* barrier is needed so the flush_status change is visible to other
--
2.46.1.824.gd892dcdcdd-goog
