* [patch] gpio-pisosr: Unlock on error in pisosr_gpio_refresh()
@ 2016-02-19 21:53 Dan Carpenter
2016-02-19 21:57 ` Andrew F. Davis
0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2016-02-19 21:53 UTC (permalink / raw)
To: Linus Walleij, Andrew F. Davis
Cc: Alexandre Courbot, linux-gpio, kernel-janitors
We should unlock before returning if spi_read() fails.
Fixes: df6df93c8a73 ('gpio: Add driver for SPI serializers')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/gpio/gpio-pisosr.c b/drivers/gpio/gpio-pisosr.c
index 58ea08df..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,
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [patch] gpio-pisosr: Unlock on error in pisosr_gpio_refresh()
2016-02-19 21:53 [patch] gpio-pisosr: Unlock on error in pisosr_gpio_refresh() Dan Carpenter
@ 2016-02-19 21:57 ` Andrew F. Davis
0 siblings, 0 replies; 2+ messages in thread
From: Andrew F. Davis @ 2016-02-19 21:57 UTC (permalink / raw)
To: Dan Carpenter, Linus Walleij
Cc: Alexandre Courbot, linux-gpio, kernel-janitors
On 02/19/2016 03:53 PM, Dan Carpenter wrote:
> We should unlock before returning if spi_read() fails.
>
> Fixes: df6df93c8a73 ('gpio: Add driver for SPI serializers')
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> diff --git a/drivers/gpio/gpio-pisosr.c b/drivers/gpio/gpio-pisosr.c
> index 58ea08df..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,
>
This must get flagged by some tool, looks like [0] beat you to it.
Thanks though,
Andrew
[0]http://www.spinics.net/lists/kernel/msg2191913.html
^ permalink raw reply [flat|nested] 2+ messages in thread
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2016-02-19 21:53 [patch] gpio-pisosr: Unlock on error in pisosr_gpio_refresh() Dan Carpenter
2016-02-19 21:57 ` Andrew F. Davis
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