From: Jiri Pirko <jiri@resnulli.us>
Date: Sat, 8 Jun 2013 13:00:53 +0000 (+0200)
Subject: team: check return value of team_get_port_by_index_rcu() for NULL
X-Git-Tag: v3.10-rc6~18^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=76c455decbbad31de21c727edb184a963f42b40b;p=pandora-kernel.git

team: check return value of team_get_port_by_index_rcu() for NULL

team_get_port_by_index_rcu() might return NULL due to race between port
removal and skb tx path. Panic is easily triggeable when txing packets
and adding/removing port in a loop.

introduced by commit 3d249d4ca "net: introduce ethernet teaming device"
and commit 753f993911b "team: introduce random mode" (for random mode)

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
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