diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 081796726b951bf449b8b827b970cf7eec1b8571..dad4d8fd8180afc8ee779a04b380a7d364cdc9db 100644
--- 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);