From: Hong zhi guo <honkiko@gmail.com>
Date: Sun, 24 Mar 2013 03:26:47 +0000 (+0000)
Subject: bridge: avoid br_ifinfo_notify when nothing changed
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~65^2~346
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7b99a99390ca328f4678ac04358c94744ab0f8b4;p=pandora-kernel.git

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>
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