From 2c0a303a128cbef54a7b58dc2e413b874d760097 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 12 Apr 2016 08:05:43 +0100 Subject: [PATCH] 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 --- drivers/regulator/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 1cff112..e414c24 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); -- 2.7.4