rt61pci: fix NULL pointer dereference in config_lna_gain
authorStanislaw Gruszka <sgruszka@redhat.com>
Fri, 3 Aug 2012 10:49:14 +0000 (12:49 +0200)
committerJohn W. Linville <linville@tuxdriver.com>
Mon, 6 Aug 2012 18:29:58 +0000 (14:29 -0400)
commitdeee0214def5d8a32b8112f11d9c2b1696e9c0cb
treec2d7fb7f18602b0b48c2d467976b53fde21d1c98
parent1f6fc43e621167492ed4b7f3b4269c584c3d6ccc
rt61pci: fix NULL pointer dereference in config_lna_gain

We can not pass NULL libconf->conf->channel to rt61pci_config() as it
is dereferenced unconditionally in rt61pci_config_lna_gain() subroutine.

Resolves:
https://bugzilla.kernel.org/show_bug.cgi?id=44361

Cc: stable@vger.kernel.org
Reported-and-tested-by: <dolohow@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
drivers/net/wireless/rt2x00/rt61pci.c