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authorBruno Randolf <br1@einfach.org>2010-06-07 06:11:19 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-06-07 20:43:57 +0200
commit436c109adb54433fff689abd71c23a6505e46bb0 (patch)
treead7860f0d757f83b439e2cf6d5a9ef8dc0e1a6e7 /drivers
parentp54usb: Add device ID for Dell WLA3310 USB (diff)
downloadlinux-436c109adb54433fff689abd71c23a6505e46bb0.tar.xz
linux-436c109adb54433fff689abd71c23a6505e46bb0.zip
ath5k: fix NULL pointer in antenna configuration
If the channel is not set yet and we configure the antennas just store the setting. It will be activated during the next reset, when the channel is set. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath/ath5k/phy.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index 1b81c4778800..492cbb15720d 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -1814,6 +1814,13 @@ ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode)
u8 def_ant, tx_ant, ee_mode;
u32 sta_id1 = 0;
+ /* if channel is not initialized yet we can't set the antennas
+ * so just store the mode. it will be set on the next reset */
+ if (channel == NULL) {
+ ah->ah_ant_mode = ant_mode;
+ return;
+ }
+
def_ant = ah->ah_def_ant;
ATH5K_TRACE(ah->ah_sc);