regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing
authorSeung-Woo Kim <sw0312.kim@samsung.com>
Thu, 4 Dec 2014 10:17:17 +0000 (19:17 +0900)
committerMark Brown <broonie@kernel.org>
Thu, 4 Dec 2014 22:45:36 +0000 (22:45 +0000)
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@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/regulator/core.c

index df2af3a11351aaf642b2b2cacb99509c349513c7..47a455cfe04fb344409a1f48ac52a7c9450edad3 100644 (file)
@@ -1713,6 +1713,8 @@ 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--;
                        }