diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c
index 1fd5fc220cd7ee9ac81c08af66e10466e5bb3821..3e22b2ff9e7406aa0c5b170efb814cd183f07450 100644
--- a/drivers/usb/misc/auerswald.c
+++ b/drivers/usb/misc/auerswald.c
@@ -630,7 +630,7 @@ static int auerchain_start_wait_urb (pauerchain_t acp, struct urb *urb, int time
 	} else
 		status = urb->status;
 
-	if (actual_length)
+	if (status >= 0)
 		*actual_length = urb->actual_length;
 
   	return status;