[PATCH 3.11 048/272] gpio: rcar: NULL dereference on error in probe()

From: Luis Henriques
Date: Fri Dec 06 2013 - 09:12:58 EST


3.11.10.1 -stable review patch. If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

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@xxxxxxxxxx>
Acked-by: Magnus Damm <damm@xxxxxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
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

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