From 4251320fa2ef93207fbefeb2eda2d265b84fc116 Mon Sep 17 00:00:00 2001 From: Ville Nuorvala Date: Mon, 16 Oct 2006 22:10:05 -0700 Subject: [IPV6]: Make sure error handling is done when calling ip6_route_output(). As ip6_route_output() never returns NULL, error checking must be done by looking at dst->error in stead of comparing dst against NULL. Signed-off-by: Ville Nuorvala Signed-off-by: David S. Miller --- net/ipv6/xfrm6_policy.c | 12 +++++++----- net/sctp/ipv6.c | 10 +++++----- 2 files changed, 12 insertions(+), 10 deletions(-) diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c index 73cee2ec07e8..d400f8fae129 100644 --- a/net/ipv6/xfrm6_policy.c +++ b/net/ipv6/xfrm6_policy.c @@ -25,12 +25,14 @@ static struct dst_ops xfrm6_dst_ops; static struct xfrm_policy_afinfo xfrm6_policy_afinfo; -static int xfrm6_dst_lookup(struct xfrm_dst **dst, struct flowi *fl) +static int xfrm6_dst_lookup(struct xfrm_dst **xdst, struct flowi *fl) { - int err = 0; - *dst = (struct xfrm_dst*)ip6_route_output(NULL, fl); - if (!*dst) - err = -ENETUNREACH; + struct dst_entry *dst = ip6_route_output(NULL, fl); + int err = dst->error; + if (!err) + *xdst = (struct xfrm_dst *) dst; + else + dst_release(dst); return err; } diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index 249e5033c1a8..78071c6e6cf1 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -215,17 +215,17 @@ static struct dst_entry *sctp_v6_get_dst(struct sctp_association *asoc, } dst = ip6_route_output(NULL, &fl); - if (dst) { + if (!dst->error) { struct rt6_info *rt; rt = (struct rt6_info *)dst; SCTP_DEBUG_PRINTK( "rt6_dst:" NIP6_FMT " rt6_src:" NIP6_FMT "\n", NIP6(rt->rt6i_dst.addr), NIP6(rt->rt6i_src.addr)); - } else { - SCTP_DEBUG_PRINTK("NO ROUTE\n"); + return dst; } - - return dst; + SCTP_DEBUG_PRINTK("NO ROUTE\n"); + dst_release(dst); + return NULL; } /* Returns the number of consecutive initial bits that match in the 2 ipv6 -- cgit v1.2.1