ChangeSet 1.1057, 2003/04/14 10:18:56-07:00, greg@kroah.com

[PATCH] USB: add better check to prevent oops in hcd_unlink_urb()


diff -Nru a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
--- a/drivers/usb/core/hcd.c	Wed Apr 16 10:49:27 2003
+++ b/drivers/usb/core/hcd.c	Wed Apr 16 10:49:27 2003
@@ -1229,7 +1229,7 @@
 	spin_unlock (&hcd_data_lock);
 	spin_unlock_irqrestore (&urb->lock, flags);
 bye:
-	if (retval && sys)
+	if (retval && sys && sys->driver)
 		dev_dbg (sys, "hcd_unlink_urb %p fail %d\n", urb, retval);
 	return retval;
 }