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authorStanislaw Gruszka <sgruszka@redhat.com>2012-08-03 12:49:14 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-08-15 07:53:04 -0700
commit667b6fd34e95ac34244f42bfa895e83fc39d2b8a (patch)
tree4c9b80df61b890c303adabb661c3e449d6f30cc2
parentec6942d015aab53df3a3b4aaf6755b4a039355a1 (diff)
rt61pci: fix NULL pointer dereference in config_lna_gain
commit deee0214def5d8a32b8112f11d9c2b1696e9c0cb upstream. 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 Reported-and-tested-by: <dolohow@gmail.com> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-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 ee22bd74579d..5fb3a2ecc91a 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);
}