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Commit 4c23d874 authored by Andrzej Hajda's avatar Andrzej Hajda Committed by Marcel Holtmann
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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: default avatarAndrzej Hajda <a.hajda@samsung.com>
Acked-by: default avatarAlexander Aring <aar@pengutronix.de>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 8790404d
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+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 */