diff options
| author | Ido Yariv <ido@wizery.com> | 2012-01-11 09:42:40 +0200 |
|---|---|---|
| committer | Luciano Coelho <coelho@ti.com> | 2012-02-15 08:38:28 +0200 |
| commit | a454969ede024a209e6a755d5f7a928ab81ed00c (patch) | |
| tree | 585296f78c132e320471a0d5acc022fef8fcc288 /drivers/net/wireless/wl12xx | |
| parent | f3df1331f25f782e838a3ecb72cec86b539ac02f (diff) | |
wl12xx: Power off after flushing work
When stopping plt, the chip is powered off before all current work items
are flushed and interrupts are disabled. This might introduce a race in
which the driver tries to communicate with a powered off chip.
Fix this by powering off the device only after interrupts are disabled
and all work items are flushed.
Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Diffstat (limited to 'drivers/net/wireless/wl12xx')
| -rw-r--r-- | drivers/net/wireless/wl12xx/main.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index ac6866469073..9e9fb3fb8f01 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -1406,8 +1406,6 @@ int wl1271_plt_stop(struct wl1271 *wl) goto out; } - wl1271_power_off(wl); - wl->state = WL1271_STATE_OFF; wl->rx_counter = 0; @@ -1417,6 +1415,11 @@ int wl1271_plt_stop(struct wl1271 *wl) wl1271_flush_deferred_work(wl); cancel_work_sync(&wl->netstack_work); cancel_work_sync(&wl->recovery_work); + + mutex_lock(&wl->mutex); + wl1271_power_off(wl); + mutex_unlock(&wl->mutex); + out: return ret; } |