Commit 3aa713e7 authored by Mattias Wallin's avatar Mattias Wallin Committed by Liam Girdwood
Browse files

regulator: lock supply in regulator enable 



This patch add locks around regulator supply enable.

Signed-off-by: default avatarMattias Wallin <mattias.wallin@stericsson.com>
Acked-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent 7727da22

drivers/regulator/core.c

+2 −0
Original line number Diff line number Diff line
@@ -1269,7 +1269,9 @@ static int _regulator_enable(struct regulator_dev *rdev) 


	/* do we need to enable the supply regulator first */

	if (rdev->supply) {

		mutex_lock(&rdev->supply->mutex);

		ret = _regulator_enable(rdev->supply);

		mutex_unlock(&rdev->supply->mutex);

		if (ret < 0) {

			printk(KERN_ERR "%s: failed to enable %s: %d\n",

			       __func__, rdev_get_name(rdev), ret);