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authorDavid S. Miller <davem@sunset.davemloft.net>2007-08-31 14:39:44 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-08-31 14:39:44 -0700
commit5c127c58ae9bf196d787815b1bd6b0aec5aee816 (patch)
tree9edf6e04fe5ac494d024da4f7581ce6afaa44e63
parent88282c6ecf0dacefda6090b0289d35e8a3cc6221 (diff)
downloadop-kernel-dev-5c127c58ae9bf196d787815b1bd6b0aec5aee816.zip
op-kernel-dev-5c127c58ae9bf196d787815b1bd6b0aec5aee816.tar.gz
[TCP]: 'dst' can be NULL in tcp_rto_min()
Reported by Rick Jones. Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv4/tcp_input.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 1ee7212..bbad2cd 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -560,7 +560,7 @@ static u32 tcp_rto_min(struct sock *sk)
struct dst_entry *dst = __sk_dst_get(sk);
u32 rto_min = TCP_RTO_MIN;
- if (dst_metric_locked(dst, RTAX_RTO_MIN))
+ if (dst && dst_metric_locked(dst, RTAX_RTO_MIN))
rto_min = dst->metrics[RTAX_RTO_MIN-1];
return rto_min;
}
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