UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

wlcore: force recovery on resume if suspended without recovering 

If an error is detected after mac80211 is already suspended, the recovery
work will not be queued. This will leave the driver in a bad state on
resume.

Detect this in the resume op and re-queue a recovery.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Arik Nemtsov 2012-06-21 18:10:49 +03:00 committed by Luciano Coelho
parent 1d23396d9d
commit ea0a3cf95e
1 changed files with 18 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/net/wireless/ti/wlcore/main.c
View File

@ -1707,7 +1707,7 @@ static int wl1271_op_resume(struct ieee80211_hw *hw)
struct wl1271 *wl = hw->priv;
struct wl12xx_vif *wlvif;
unsigned long flags;
bool run_irq_work = false;
bool run_irq_work = false, pending_recovery;
wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d",
wl->wow_enabled);
@ -1723,17 +1723,33 @@ static int wl1271_op_resume(struct ieee80211_hw *hw)
run_irq_work = true;
spin_unlock_irqrestore(&wl->wl_lock, flags);
/* test the recovery flag before calling any SDIO functions */
pending_recovery = test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS,
&wl->flags);
if (run_irq_work) {
wl1271_debug(DEBUG_MAC80211,
"run postponed irq_work directly");
wl1271_irq(0, wl);
/* don't talk to the HW if recovery is pending */
if (!pending_recovery)
wl1271_irq(0, wl);
wlcore_enable_interrupts(wl);
}
mutex_lock(&wl->mutex);
if (pending_recovery) {
wl1271_warning("queuing forgotten recovery on resume");
ieee80211_queue_work(wl->hw, &wl->recovery_work);
goto out;
}
wl12xx_for_each_wlvif(wl, wlvif) {
wl1271_configure_resume(wl, wlvif);
}
out:
wl->wow_enabled = false;
mutex_unlock(&wl->mutex);