From: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
After freeing pin from regulator_ena_gpio_free, loop can access
the pin. So this patch fixes not to access pin after freeing.
Signed-off-by: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
(cherry picked from commit 60a2362f769cf549dc466134efe71c8bf9fbaaba)
Signed-off-by: Amit Pundir <amit.pundir@xxxxxxxxxx>
---
drivers/regulator/core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 872e53f15590..b2e183627f53 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1720,6 +1720,8 @@ static void regulator_ena_gpio_free(struct regulator_dev *rdev)
gpiod_put(pin->gpiod);
list_del(&pin->list);
kfree(pin);
+ rdev->ena_pin = NULL;
+ return;
} else {
pin->request_count--;
}
--
2.7.4