Commit 4c23d874 authored Feb 24, 2016 by Andrzej Hajda Committed by Marcel Holtmann Feb 24, 2016

6lowpan: fix error checking code



Bool variable 'fail' is always non-negative, it indicates an error if it
is true.

The problem has been detected using coccinelle script
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

parent 8790404d

net/6lowpan/iphc.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -482,7 +482,7 @@ static int lowpan_uncompress_multicast_ctx_daddr(struct sk_buff *skb,
		ipaddr->s6_addr[0] = 0xFF;
		fail = lowpan_fetch_skb(skb, &ipaddr->s6_addr[1], 2);
		fail \|= lowpan_fetch_skb(skb, &ipaddr->s6_addr[12], 4);
		if (fail < 0)
		if (fail)
		return -EIO;

		/* take prefix_len and network prefix from the context */