pinctrl: fix missing unlock on error in pinctrl_groups_show()

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

Change-Id: Iac18ab1f87524130860e0ca645af7ed937548711
Cc: stable@kernel.org
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Git-commit: b4dd784ba8af03bf1f9ee5118c792d7abd4919bd
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Hanumant Singh <hanumant@codeaurora.org>
1 file changed