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ipv6: fix inet6_csk_update_pmtu() return value 

In case of error, inet6_csk_update_pmtu() should consistently
return NULL.

Bug added in commit 35ad9b9cf7
(ipv6: Add helper inet6_csk_update_pmtu().)

Reported-by: Lluís Batlle i Rossell <viric@viric.name>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2012-11-20 15:14:51 -05:00 committed by David S. Miller
parent 3e2f61cd7a
commit b4dd006760
1 changed files with 2 additions and 1 deletions
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3
net/ipv6/inet6_connection_sock.c
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@ -252,6 +252,7 @@ struct dst_entry *inet6_csk_update_pmtu(struct sock *sk, u32 mtu)
return NULL; return NULL;
dst->ops->update_pmtu(dst, sk, NULL, mtu); dst->ops->update_pmtu(dst, sk, NULL, mtu);
return inet6_csk_route_socket(sk, &fl6); dst = inet6_csk_route_socket(sk, &fl6);
return IS_ERR(dst) ? NULL : dst;
} }
EXPORT_SYMBOL_GPL(inet6_csk_update_pmtu); EXPORT_SYMBOL_GPL(inet6_csk_update_pmtu);