[3.11.y.z extended stable] Patch "gpio: rcar: NULL dereference on error in probe()" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    gpio: rcar: NULL dereference on error in probe()

to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 2cf7f02f37f5a1c28e080d7388f970b3705ac50e Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter at oracle.com>
Date: Thu, 7 Nov 2013 10:56:51 +0300
Subject: gpio: rcar: NULL dereference on error in probe()

commit 0c8aab8e65e450f2bfea494c1b6a86ded653f88c upstream.

It's not obvious from the label name but "err1" tries to release
"p->irq_domain" which leads to a NULL dereference.

Fixes: 119f5e448d32 ('gpio: Renesas R-Car GPIO driver V3')

Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
Acked-by: Magnus Damm <damm at opensource.se>
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/gpio/gpio-rcar.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index e8198dd..e73f437 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -381,7 +381,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
 	if (!p->irq_domain) {
 		ret = -ENXIO;
 		dev_err(&pdev->dev, "cannot initialize irq domain\n");
-		goto err1;
+		goto err0;
 	}

 	if (devm_request_irq(&pdev->dev, irq->start,
--
1.8.3.2