linux-kernel - Re: [PATCH v2 02/10] leds: aw2013: unlock mutex before destroying it

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Message-ID: <eab990d8-9b08-4019-95c6-c71786081236@csgroup.eu>
Date:   Mon, 4 Dec 2023 23:09:36 +0000
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     George Stark <gnstark@...utedevices.com>,
        "pavel@....cz" <pavel@....cz>, "lee@...nel.org" <lee@...nel.org>,
        "vadimp@...dia.com" <vadimp@...dia.com>,
        "mpe@...erman.id.au" <mpe@...erman.id.au>,
        "npiggin@...il.com" <npiggin@...il.com>,
        "hdegoede@...hat.com" <hdegoede@...hat.com>,
        "mazziesaccount@...il.com" <mazziesaccount@...il.com>,
        "andy.shevchenko@...il.com" <andy.shevchenko@...il.com>,
        "jic23@...nel.org" <jic23@...nel.org>
CC:     "linux-leds@...r.kernel.org" <linux-leds@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "kernel@...utedevices.com" <kernel@...utedevices.com>
Subject: Re: [PATCH v2 02/10] leds: aw2013: unlock mutex before destroying it



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@...utedevices.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;
>   }