From: Ido Yariv <ido@xxxxxxxxxx> 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@xxxxxxxxxx> --- 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 fc4d4d5..bf356a8 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; } -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
