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(parent: 67c5c6c) | patch
ethtool: __ethtool_set_sg: check for function pointer before using it
authorRoger Luethi <rl@hellgate.ch>
Thu, 17 Mar 2011 06:37:21 +0000 (06:37 +0000)
committerDavid S. Miller <davem@davemloft.net>
Fri, 18 Mar 2011 22:13:10 +0000 (15:13 -0700)
commit5e5069b41d5b82bcadc1dbf73f48476b428c102f
treedd7e2eb386328b0c94ef939d27540c10f11df8e2tree | snapshot
parent67c5c6cb8129c595f21e88254a3fc6b3b841ae8ecommit | diff
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>
net/core/ethtool.c diff | blob | history
Andy's Linux Kernel repo