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[v2,02/10] leds: aw2013: unlock mutex before destroying it

Message ID 20231204180603.470421-3-gnstark@salutedevices.com
State Superseded
Headers show
Series devm_led_classdev_register() usage problem | expand

Commit Message

George Stark Dec. 4, 2023, 6:05 p.m. UTC 
In the probe() callback in case of error mutex is destroyed being locked
which is not allowed so unlock the mute before destroying.

Signed-off-by: George Stark <gnstark@salutedevices.com>
---
 drivers/leds/leds-aw2013.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Andy Shevchenko Dec. 4, 2023, 6:13 p.m. UTC | #1 
On Mon, Dec 4, 2023 at 8:07 PM George Stark <gnstark@salutedevices.com> wrote:
>
> In the probe() callback in case of error mutex is destroyed being locked
> which is not allowed so unlock the mute before destroying.

Sounds to me like this is a real fix, hence the Fixes tag and being
first in the series.

You free to add
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Christophe Leroy Dec. 4, 2023, 11:09 p.m. UTC | #2 
Le 04/12/2023 à 19:05, George Stark a écrit :
> In the probe() callback in case of error mutex is destroyed being locked
> which is not allowed so unlock the mute before destroying.

Should there be a fixes: tag ? For instance on 59ea3c9faf32 ("leds: add 
aw2013 driver") ?

> 
> Signed-off-by: George Stark <gnstark@salutedevices.com>
> ---
>   drivers/leds/leds-aw2013.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/leds/leds-aw2013.c b/drivers/leds/leds-aw2013.c
> index 59765640b70f..c2bc0782c0cd 100644
> --- a/drivers/leds/leds-aw2013.c
> +++ b/drivers/leds/leds-aw2013.c
> @@ -397,6 +397,7 @@ static int aw2013_probe(struct i2c_client *client)
>   	regulator_disable(chip->vcc_regulator);
>   
>   error:
> +	mutex_unlock(&chip->mutex);
>   	mutex_destroy(&chip->mutex);
>   	return ret;
>   }
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Patch

diff --git a/drivers/leds/leds-aw2013.c b/drivers/leds/leds-aw2013.c
index 59765640b70f..c2bc0782c0cd 100644
--- a/drivers/leds/leds-aw2013.c
+++ b/drivers/leds/leds-aw2013.c
@@ -397,6 +397,7 @@  static int aw2013_probe(struct i2c_client *client)
 	regulator_disable(chip->vcc_regulator);
 
 error:
+	mutex_unlock(&chip->mutex);
 	mutex_destroy(&chip->mutex);
 	return ret;
 }