Patch "regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing" has been added to the 3.18-stable tree

Patch "regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing" has been added to the 3.18-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing

to the 3.18-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     regulator-core-fix-regualtor_ena_gpio_free-not-to-access-pin-after-freeing.patch
and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 60a2362f769cf549dc466134efe71c8bf9fbaaba Mon Sep 17 00:00:00 2001
From: Seung-Woo Kim <sw0312.kim@samsung.com>
Date: Thu, 4 Dec 2014 19:17:17 +0900
Subject: regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing

From: Seung-Woo Kim <sw0312.kim@samsung.com>

commit 60a2362f769cf549dc466134efe71c8bf9fbaaba upstream.

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>
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/regulator/core.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1720,6 +1720,8 @@ static void regulator_ena_gpio_free(stru
 				gpiod_put(pin->gpiod);
 				list_del(&pin->list);
 				kfree(pin);
+				rdev->ena_pin = NULL;
+				return;
 			} else {
 				pin->request_count--;
 			}


Patches currently in stable-queue which might be from sw0312.kim@samsung.com are

queue-3.18/regulator-core-fix-regualtor_ena_gpio_free-not-to-access-pin-after-freeing.patch