[ 3.5.yuz extended stable ] Patch "pinctrl: fix missing unlock on error in" has been added to staging queue

[Herton Ronaldo Krzesinski]

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

    pinctrl: fix missing unlock on error in

to the linux-3.5.y-queue branch of the 3.5.yuz extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.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 3.5.yuz tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Herton

------

>From 6de22ad1c6e57d333d45f7bf5ef561d22c366f33 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
Date: Mon, 22 Oct 2012 12:58:09 +0800
Subject: [PATCH] pinctrl: fix missing unlock on error in
 pinctrl_groups_show()

commit b4dd784ba8af03bf1f9ee5118c792d7abd4919bd upstream.

Add the missing unlock on the error handle path in function
pinctrl_groups_show().

Signed-off-by: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski at canonical.com>
---
 drivers/pinctrl/core.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 0cc053a..5e59c45 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -1069,8 +1069,10 @@ static int pinctrl_groups_show(struct seq_file *s, void *what)
 			seq_printf(s, "group: %s\n", gname);
 			for (i = 0; i < num_pins; i++) {
 				pname = pin_get_name(pctldev, pins[i]);
-				if (WARN_ON(!pname))
+				if (WARN_ON(!pname)) {
+					mutex_unlock(&pinctrl_mutex);
 					return -EINVAL;
+				}
 				seq_printf(s, "pin %d (%s)\n", pins[i], pname);
 			}
 			seq_puts(s, "\n");
--
1.7.9.5