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pinctrl: fix missing unlock on error in pinctrl_groups_show()

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

Cc: stable@kernel.org
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Wei Yongjun 2012-10-22 12:58:09 +08:00 committed by Linus Walleij
parent 268300be0e
commit b4dd784ba8
1 changed files with 3 additions and 1 deletions
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4
drivers/pinctrl/core.c
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@ -1061,8 +1061,10 @@ 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");