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gpio: pisosr: add missing unlock

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If spi_read() fails then we just returned but we missed unlocking the
mutex.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Sudip Mukherjee 2016-02-19 14:53:00 +05:30 committed by Linus Walleij
parent 8cae5f9740
commit 3e089d9f55
1 changed files with 1 additions and 3 deletions
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4
drivers/gpio/gpio-pisosr.c
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@ -53,12 +53,10 @@ static int pisosr_gpio_refresh(struct pisosr_gpio *gpio)
}
ret = spi_read(gpio->spi, gpio->buffer, gpio->buffer_size);
if (ret)
return ret;
mutex_unlock(&gpio->lock);
return 0;
return ret;
}
static int pisosr_gpio_get_direction(struct gpio_chip *chip,