ipv4: avoid passing NULL to inet_putpeer() in icmpv4_xrlim_allow()
authorNeal Cardwell <ncardwell@google.com>
Sat, 24 Nov 2012 18:54:37 +0000 (18:54 +0000)
committerDavid S. Miller <davem@davemloft.net>
Mon, 26 Nov 2012 22:24:41 +0000 (17:24 -0500)
commite1a676424c290b1c8d757e3860170ac7ecd89af4
treea52a085c1c041bcc2ad7797e7c7526f8eae842ae
parent81b401100c01d2357031e874689f89bd788d13cd
ipv4: avoid passing NULL to inet_putpeer() in icmpv4_xrlim_allow()

inet_getpeer_v4() can return NULL under OOM conditions, and while
inet_peer_xrlim_allow() is OK with a NULL peer, inet_putpeer() will
crash.

This code path now uses the same idiom as the others from:
1d861aa4b3fb08822055345f480850205ffe6170 ("inet: Minimize use of
cached route inetpeer.").

Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/icmp.c