linux-kernel - [patch] gpiolib: unlock on error in gpio

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Date:	Fri, 26 Oct 2012 09:59:43 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Grant Likely <grant.likely@...retlab.ca>,
	Ryan Mallon <rmallon@...il.com>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch] gpiolib: unlock on error in gpio_export()

We need to unlock here before returning.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
---
Only needed in linux-next.

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index d5f9742..14251c3 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -728,7 +728,8 @@ int gpio_export(unsigned gpio, bool direction_may_change)
 				__func__, gpio,
 				test_bit(FLAG_REQUESTED, &desc->flags),
 				test_bit(FLAG_EXPORT, &desc->flags));
-		return -EPERM;
+		status = -EPERM;
+		goto fail_unlock;
 	}
 
 	if (!desc->chip->direction_input || !desc->chip->direction_output)
--
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