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authorStanislaw Gruszka <sgruszka@redhat.com>2012-08-03 12:49:14 +0200
committerJohn W. Linville <linville@tuxdriver.com>2012-08-06 14:29:58 -0400
commitdeee0214def5d8a32b8112f11d9c2b1696e9c0cb (patch)
treec2d7fb7f18602b0b48c2d467976b53fde21d1c98
parent1f6fc43e621167492ed4b7f3b4269c584c3d6ccc (diff)
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>
-rw-r--r--drivers/net/wireless/rt2x00/rt61pci.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index f32259686b45..3f7bc5cadf9a 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -2243,8 +2243,7 @@ static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
static void rt61pci_wakeup(struct rt2x00_dev *rt2x00dev)
{
- struct ieee80211_conf conf = { .flags = 0 };
- struct rt2x00lib_conf libconf = { .conf = &conf };
+ struct rt2x00lib_conf libconf = { .conf = &rt2x00dev->hw->conf };
rt61pci_config(rt2x00dev, &libconf, IEEE80211_CONF_CHANGE_PS);
}