6lowpan: remove unnecessary check on err >= 0

The err variable can only be zero in this case.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index d288035..9057f83 100644 (file)
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1179,7 +1179,7 @@ lowpan_skb_fragmentation(struct sk_buff *skb, struct net_device *dev)
        head[0] &= ~LOWPAN_DISPATCH_FRAG1;
        head[0] |= LOWPAN_DISPATCH_FRAGN;
 
-       while ((payload_length - offset > 0) && (err >= 0)) {
+       while (payload_length - offset > 0) {
                int len = LOWPAN_FRAG_SIZE;
 
                head[4] = offset / 8;