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>
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index ed7d4e3f..0630a4d5 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -577,8 +577,10 @@
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);