Commit 872b407f authored Jun 09, 2014 by Ashay Jaiswal

power: qpnp-linear-charger: Fix mutex deadlock in charger



There is a deadlock condition between BMS reporting end-of-charge
and charger driver resuming charging in get capacity.

Fix the above deadlock by calling get capacity outside the
mutex lock.

CRs-Fixed: 675064
Change-Id: I385bfc301bd55d5460d2294a8427d31648df9bb6
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>

parent 38be2e8f

drivers/power/qpnp-linear-charger.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -881,7 +881,10 @@ static int get_prop_capacity(struct qpnp_lbc_chip *chip)
		return DEFAULT_CAPACITY;

		if (chip->bms_psy) {
		chip->bms_psy->get_property(chip->bms_psy,
		POWER_SUPPLY_PROP_CAPACITY, &ret);
		mutex_lock(&chip->chg_enable_lock);
		if (chip->chg_done)
		chip->bms_psy->get_property(chip->bms_psy,
		POWER_SUPPLY_PROP_CAPACITY, &ret);
		battery_status = get_prop_batt_status(chip);