shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-10 04:48:04 +09:00
Code Issues Packages Projects Releases Wiki Activity

ath9k: fix a chip wakeup related crash in ath9k_start

Browse Source 
commit f62d816fc4 upstream.

When the chip is still asleep when ath9k_start is called,
ath9k_hw_configpcipowersave can trigger a data bus error.

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>
This commit is contained in:
Felix Fietkau
2011-03-25 17:43:41 +01:00
committed by Greg Kroah-Hartman
parent a9a4c9cffa
commit a8c260993f
1 changed files with 4 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/wireless/ath/ath9k/main.c
View File

@@ -1918,6 +1918,8 @@ static int ath9k_start(struct ieee80211_hw *hw)
DPRINTF(sc, ATH_DBG_CONFIG, "Starting driver with "
"initial channel: %d MHz\n", curchan->center_freq);
ath9k_ps_wakeup(sc);
mutex_lock(&sc->mutex);
if (ath9k_wiphy_started(sc)) {
@@ -2025,6 +2027,8 @@ static int ath9k_start(struct ieee80211_hw *hw)
mutex_unlock:
mutex_unlock(&sc->mutex);
ath9k_ps_restore(sc);
return r;
}