From: Roger Luethi <rl@hellgate.ch>
Date: Thu, 17 Mar 2011 06:37:21 +0000 (+0000)
Subject: ethtool: __ethtool_set_sg: check for function pointer before using it
X-Git-Tag: v2.6.39-rc1~390^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5e5069b41d5b82bcadc1dbf73f48476b428c102f;p=pandora-kernel.git

ethtool: __ethtool_set_sg: check for function pointer before using it

__ethtool_set_sg does not check if dev->ethtool_ops->set_sg is defined
which can result in a NULL pointer dereference when ethtool is used to
change SG settings for drivers without SG support.

Signed-off-by: Roger Luethi <rl@hellgate.ch>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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