diff options
| author | Wei Yongjun <yongjun_wei@trendmicro.com.cn> | 2013-06-18 12:24:58 +0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-06-18 09:41:15 +0200 |
| commit | c8f50e8657a6dd8d6b2a596e4b4659fd77dc1718 (patch) | |
| tree | d40fa36760ba5bfda9ee3e001c5cb6a16f51b86f /drivers/pinctrl | |
| parent | 5a68e7a748c03127e6e54c353017cd19bffd2016 (diff) | |
| download | lwn-c8f50e8657a6dd8d6b2a596e4b4659fd77dc1718.tar.gz lwn-c8f50e8657a6dd8d6b2a596e4b4659fd77dc1718.zip | |
pinctrl: core: fix missing unlock on error in pinctrl_find_gpio_range_from_pin()
Add the missing unlock before return from function pinctrl_find_gpio_range_from_pin()
in the error handling case.
Introduced by commit 2ff3477efd7086544b9e298fc63afab0645921b4.
(pinctrl: add pin list based GPIO ranges)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/core.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index 32eb7e2a3f34..d759889ead9a 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -465,7 +465,7 @@ struct pinctrl_gpio_range * pinctrl_find_gpio_range_from_pin(struct pinctrl_dev *pctldev, unsigned int pin) { - struct pinctrl_gpio_range *range = NULL; + struct pinctrl_gpio_range *range; mutex_lock(&pctldev->mutex); /* Loop over the ranges */ @@ -475,17 +475,16 @@ pinctrl_find_gpio_range_from_pin(struct pinctrl_dev *pctldev, int a; for (a = 0; a < range->npins; a++) { if (range->pins[a] == pin) - return range; + goto out; } } else if (pin >= range->pin_base && - pin < range->pin_base + range->npins) { - mutex_unlock(&pctldev->mutex); - return range; - } + pin < range->pin_base + range->npins) + goto out; } + range = NULL; +out: mutex_unlock(&pctldev->mutex); - - return NULL; + return range; } EXPORT_SYMBOL_GPL(pinctrl_find_gpio_range_from_pin); |