[PATCH] USB: add might_sleep() to usb_unlink_urb() to warn developers

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 0817967..dad4d8f 100644 (file)
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -468,6 +468,7 @@ int usb_unlink_urb(struct urb *urb)
  */
 void usb_kill_urb(struct urb *urb)
 {
+       might_sleep();
        if (!(urb && urb->dev && urb->dev->bus && urb->dev->bus->op))
                return;
        spin_lock_irq(&urb->lock);