bq27x00_battery: Fix OOPS caused by unregistring bq27x00 driver

* power_supply_unregister call bq27x00_battery_get_property which call bq27x00_battery_poll * make sure that bq27x00_battery_poll will not call schedule_delayed_work again after unregister (which cause OOPS) Signed-off-by: Pali Rohár <[email protected]> Signed-off-by: Anton Vorontsov <[email protected]>
aryabhatiya · Nov 25, 2011 · 8cfaaa8 · 8cfaaa8
1 parent c6cd4f2
commit 8cfaaa8
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
@@ -598,6 +598,14 @@ static int bq27x00_powersupply_init(struct bq27x00_device_info *di)
 
 static void bq27x00_powersupply_unregister(struct bq27x00_device_info *di)
 {
+	/*
+	 * power_supply_unregister call bq27x00_battery_get_property which
+	 * call bq27x00_battery_poll.
+	 * Make sure that bq27x00_battery_poll will not call
+	 * schedule_delayed_work again after unregister (which cause OOPS).
+	 */
+	poll_interval = 0;
+
 	cancel_delayed_work_sync(&di->work);
 
 	power_supply_unregister(&di->bat);