From: Mark Brown Date: Tue, 12 Apr 2016 07:05:43 +0000 (+0100) Subject: regulator: core: Fix locking of GPIO list on free X-Git-Tag: v4.7-rc1~173^2~10^2 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2c0a303a128cbef54a7b58dc2e413b874d760097;p=karo-tx-linux.git regulator: core: Fix locking of GPIO list on free When we acquire a shareable enable GPIO on probe we do so with the regulator_list_mutex held. However when we release the GPIOs we do this immediately after dropping the mutex meaning that the list could become corrupted. Move the release into the locked region to avoid this. Signed-off-by: Mark Brown --- diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 1cff11205642..e414c24b2906 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -4021,8 +4021,8 @@ void regulator_unregister(struct regulator_dev *rdev) WARN_ON(rdev->open_count); unset_regulator_supplies(rdev); list_del(&rdev->list); - mutex_unlock(®ulator_list_mutex); regulator_ena_gpio_free(rdev); + mutex_unlock(®ulator_list_mutex); device_unregister(&rdev->dev); } EXPORT_SYMBOL_GPL(regulator_unregister);