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| author | Hong zhi guo <honkiko@gmail.com> | 2013-03-24 03:26:47 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-24 17:16:30 -0400 |
| commit | 7b99a99390ca328f4678ac04358c94744ab0f8b4 (patch) | |
| tree | 266b13a857c2d2c62566e30db838954bedd3c01c /net/bridge | |
| parent | 5e95329b701c4edf6c4d72487ec0369fa148c0bd (diff) | |
| download | linux-stable-7b99a99390ca328f4678ac04358c94744ab0f8b4.tar.gz linux-stable-7b99a99390ca328f4678ac04358c94744ab0f8b4.tar.bz2 linux-stable-7b99a99390ca328f4678ac04358c94744ab0f8b4.zip | |
bridge: avoid br_ifinfo_notify when nothing changed
When neither IFF_BRIDGE nor IFF_BRIDGE_PORT is set,
and afspec == NULL but protinfo != NULL, we run into
"if (err == 0) br_ifinfo_notify(RTM_NEWLINK, p);" with
random value in ret.
Thanks to Sergei for pointing out the error in commit comments.
Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
| -rw-r--r-- | net/bridge/br_netlink.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index 84c3b7d6d1b1..b96e02e31bad 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -357,7 +357,7 @@ int br_setlink(struct net_device *dev, struct nlmsghdr *nlh) struct nlattr *afspec; struct net_bridge_port *p; struct nlattr *tb[IFLA_BRPORT_MAX + 1]; - int err; + int err = 0; ifm = nlmsg_data(nlh); @@ -370,7 +370,7 @@ int br_setlink(struct net_device *dev, struct nlmsghdr *nlh) /* We want to accept dev as bridge itself if the AF_SPEC * is set to see if someone is setting vlan info on the brigde */ - if (!p && ((dev->priv_flags & IFF_EBRIDGE) && !afspec)) + if (!p && !afspec) return -EINVAL; if (p && protinfo) { |