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authorJulia Lawall <julia.lawall@lip6.fr>2015-08-23 03:11:21 +0300
committerDavid S. Miller <davem@davemloft.net>2015-08-25 23:37:31 +0300
commit25105051fde444cac11a2e2599350e5388936428 (patch)
treec44d142012fd65f572bfe02e65e8ff747563e575 /net/ipv6/ah6.c
parent5c12197939be10c117039aabc06830297fb6d6ee (diff)
downloadlinux-25105051fde444cac11a2e2599350e5388936428.tar.xz
ah6: fix error return code
Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ah6.c')
-rw-r--r--net/ipv6/ah6.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index ed7d4e3f9c10..0630a4d5daaa 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -577,8 +577,10 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
work_iph = ah_alloc_tmp(ahash, nfrags + sglists, hdr_len +
ahp->icv_trunc_len + seqhi_len);
- if (!work_iph)
+ if (!work_iph) {
+ err = -ENOMEM;
goto out;
+ }
auth_data = ah_tmp_auth((u8 *)work_iph, hdr_len);
seqhi = (__be32 *)(auth_data + ahp->icv_trunc_len);