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| author | wangweidong <wangweidong1@huawei.com> | 2013-12-26 13:55:56 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-12-31 14:31:44 -0500 |
| commit | 0438816efd86c764d5544bf52e769604062316b3 (patch) | |
| tree | f7d505f16aec9a072e934dbc8dc2c79c4fd229cd /net/sctp/output.c | |
| parent | 6a031f67c83aa175aedd10d4ae64750415ab57b0 (diff) | |
| download | linux-0438816efd86c764d5544bf52e769604062316b3.tar.gz linux-0438816efd86c764d5544bf52e769604062316b3.tar.bz2 linux-0438816efd86c764d5544bf52e769604062316b3.zip | |
sctp: move skb_dst_set() a bit downwards in sctp_packet_transmit()
skb_dst_set will use dst, if dst is NULL although is not a problem,
then goto the 'no_route' and free nskb, so do the skb_dst_set is pointless.
so move the skb_dst_set after dst check.
Remove the unnecessary initialization as well.
v2: fix the subject line because it would confuse people,
as pointed out by Daniel.
Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/output.c')
| -rw-r--r-- | net/sctp/output.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c index b971cd226cf5..0f4d15fc2627 100644 --- a/net/sctp/output.c +++ b/net/sctp/output.c @@ -387,7 +387,7 @@ int sctp_packet_transmit(struct sctp_packet *packet) int err = 0; int padding; /* How much padding do we need? */ __u8 has_data = 0; - struct dst_entry *dst = tp->dst; + struct dst_entry *dst; unsigned char *auth = NULL; /* pointer to auth in skb data */ pr_debug("%s: packet:%p\n", __func__, packet); @@ -420,9 +420,9 @@ int sctp_packet_transmit(struct sctp_packet *packet) } } dst = dst_clone(tp->dst); - skb_dst_set(nskb, dst); if (!dst) goto no_route; + skb_dst_set(nskb, dst); /* Build the SCTP header. */ sh = (struct sctphdr *)skb_push(nskb, sizeof(struct sctphdr)); |