From f0059021084137b4ffd2ffc7ee4b62a895c4c84a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 18 Aug 2013 20:34:22 +0800 Subject: [PATCH] pinctrl: core: Hold pinctrldev_list_mutex mutex while traversing pinctrldev_list This one is missed in commit 44d5f7bb "pinctrl: sink pinctrldev_list_mutex". Signed-off-by: Axel Lin Signed-off-by: Linus Walleij --- drivers/pinctrl/core.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index a97b717e3ad3..ff06582103c0 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -392,6 +392,8 @@ static int pinctrl_get_device_gpio_range(unsigned gpio, { struct pinctrl_dev *pctldev = NULL; + mutex_lock(&pinctrldev_list_mutex); + /* Loop over the pin controllers */ list_for_each_entry(pctldev, &pinctrldev_list, node) { struct pinctrl_gpio_range *range; @@ -400,10 +402,13 @@ static int pinctrl_get_device_gpio_range(unsigned gpio, if (range != NULL) { *outdev = pctldev; *outrange = range; + mutex_unlock(&pinctrldev_list_mutex); return 0; } } + mutex_unlock(&pinctrldev_list_mutex); + return -EPROBE_DEFER; } -- 2.39.5