ath9k: fix double calls to ath_radio_enable

commit 1144601118507f8b3b676a9a392584d216d3f2cc upstream.

With the enable_radio being uninitialized, ath_radio_enable() might be
called twice, which can leave some hardware in an undefined state.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 33a10716af8b2a651325508de44495a029edf61e..7b1eab4d85cbddc6cccab608319f22f6eb4ec985 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2721,8 +2721,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
                all_wiphys_idle =  ath9k_all_wiphys_idle(sc);
                ath9k_set_wiphy_idle(aphy, idle);
 
-               if (!idle && all_wiphys_idle)
-                       enable_radio = true;
+               enable_radio = (!idle && all_wiphys_idle);
 
                /*
                 * After we unlock here its possible another wiphy