From: Pali Rohár <pali.rohar@gmail.com>
Date: Tue, 1 Nov 2011 00:43:11 +0000 (+0100)
Subject: bq27x00_battery: Fix OOPS caused by unregistring bq27x00 driver
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db;p=mv-sheeva.git

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 <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
---

diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
index 82ab6ca45f5..98bf5676318 100644
--- 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);