Messages in this thread Patch in this message | | | From | Sudip Mukherjee <> | Subject | [PATCH] gpio: pisosr: add missing unlock | Date | Fri, 19 Feb 2016 14:53:00 +0530 |
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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> --- drivers/gpio/gpio-pisosr.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpio/gpio-pisosr.c b/drivers/gpio/gpio-pisosr.c index 58ea08d..f9f1074 100644 --- a/drivers/gpio/gpio-pisosr.c +++ b/drivers/gpio/gpio-pisosr.c @@ -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, -- 1.9.1
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