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| author | Xi Wang <xi.wang@gmail.com> | 2013-01-05 11:19:24 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-01-06 21:11:18 -0800 |
| commit | c7e2e1d72ed7707239d20525e0ebcad7e3303659 (patch) | |
| tree | 1ada00f778308f034bfc082b03f740955599f526 | |
| parent | ae62ca7b03217be5e74759dc6d7698c95df498b3 (diff) | |
| download | linux-c7e2e1d72ed7707239d20525e0ebcad7e3303659.tar.bz2 | |
ipv4: fix NULL checking in devinet_ioctl()
The NULL pointer check `!ifa' should come before its first use.
[ Bug origin : commit fd23c3b31107e2fc483301ee923d8a1db14e53f4
(ipv4: Add hash table of interface addresses) in linux-2.6.39 ]
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/devinet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index cc06a47f1216..a8e4f2665d5e 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -823,9 +823,9 @@ int devinet_ioctl(struct net *net, unsigned int cmd, void __user *arg) if (!ifa) { ret = -ENOBUFS; ifa = inet_alloc_ifa(); - INIT_HLIST_NODE(&ifa->hash); if (!ifa) break; + INIT_HLIST_NODE(&ifa->hash); if (colon) memcpy(ifa->ifa_label, ifr.ifr_name, IFNAMSIZ); else |