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| author | David S. Miller <davem@sunset.davemloft.net> | 2007-08-31 23:39:44 +0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-08-31 23:39:44 +0200 |
| commit | 5c127c58ae9bf196d787815b1bd6b0aec5aee816 (patch) | |
| tree | 9edf6e04fe5ac494d024da4f7581ce6afaa44e63 /net | |
| parent | [PKTGEN]: Remove write-only variable. (diff) | |
| download | linux-5c127c58ae9bf196d787815b1bd6b0aec5aee816.tar.xz linux-5c127c58ae9bf196d787815b1bd6b0aec5aee816.zip | |
[TCP]: 'dst' can be NULL in tcp_rto_min()
Reported by Rick Jones.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/tcp_input.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 1ee72127462b..bbad2cdb74b7 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; } |