X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fusb%2Fserial%2Fcyberjack.c;h=6e1b69d0f5f57da980f439a3643567ada4aec3b6;hb=5287bf726ff8a7353e883b73576710fd53dc88bb;hp=781426230d695a3f34544ab4b0a589a500a0063e;hpb=297b8a07347555f0d2fafa4a1ddfc332d2d4afa9;p=karo-tx-linux.git

diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index 781426230d69..6e1b69d0f5f5 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -279,7 +279,7 @@ static void cyberjack_read_int_callback(struct urb *urb)
 
 		old_rdtodo = priv->rdtodo;
 
-		if (old_rdtodo + size < old_rdtodo) {
+		if (old_rdtodo > SHRT_MAX - size) {
 			dev_dbg(dev, "To many bulk_in urbs to do.\n");
 			spin_unlock(&priv->lock);
 			goto resubmit;