From: Amir Vadai <amirv@mellanox.com>
Date: Sun, 2 Nov 2014 14:26:14 +0000 (+0200)
Subject: net/mlx4_core: Protect port type setting by mutex
X-Git-Tag: omap-for-v3.19/fixes-rc1~125^2~294^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0a98455666ec87378148a1dde97f1ce5baf75a64;p=pandora-kernel.git

net/mlx4_core: Protect port type setting by mutex

We need to protect set_port_type() for concurrency, as the sysfs code could
call it from mutliple contexts in parallel.

The port_mutex is not enough because we need to protect from concurrent
modification of 'info' and stopping of the port sensing work.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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