[PATCH 1/2] pinctrl: core: Hold pinctrldev_list_mutex mutex while traversing pinctrldev_list (1 reply)

This one is missed in commit 44d5f7bb "pinctrl: sink pinctrldev_list_mutex".

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
drivers/pinctrl/core.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index c8fcedb..c670527 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;
}

--
1.8.1.2



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