linux-kernel - Re: [PATCH] soc/meson: add missing free

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sun, 07 Jun 2020 22:43:18 +0200
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Pavel Machek <pavel@....cz>, lgirdwood@...il.com,
        broonie@...nel.org, perex@...ex.cz, tiwai@...e.com,
        khilman@...libre.com, alsa-devel@...a-project.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        trivial@...nel.org
Subject: Re: [PATCH] soc/meson: add missing free_irq() in error path


On Sat 06 Jun 2020 at 17:31, Pavel Machek <pavel@....cz> wrote:

> free_irq() is missing in case of error, fix that.
>
> Signed-off-by: Pavel Machek (CIP) <pavel@...x.de>

Reviewed-by: Jerome Brunet <jbrunet@...libre.com>

>
> diff --git a/sound/soc/meson/axg-fifo.c b/sound/soc/meson/axg-fifo.c
> index 2e9b56b29d31..b2e867113226 100644
> --- a/sound/soc/meson/axg-fifo.c
> +++ b/sound/soc/meson/axg-fifo.c
> @@ -249,7 +249,7 @@ int axg_fifo_pcm_open(struct snd_soc_component *component,
>  	/* Enable pclk to access registers and clock the fifo ip */
>  	ret = clk_prepare_enable(fifo->pclk);
>  	if (ret)
> -		return ret;
> +		goto free_irq;
>  
>  	/* Setup status2 so it reports the memory pointer */
>  	regmap_update_bits(fifo->map, FIFO_CTRL1,
> @@ -269,8 +269,14 @@ int axg_fifo_pcm_open(struct snd_soc_component *component,
>  	/* Take memory arbitror out of reset */
>  	ret = reset_control_deassert(fifo->arb);
>  	if (ret)
> -		clk_disable_unprepare(fifo->pclk);
> +		goto free_clk;
> +
> +	return 0;
>  
> +free_clk:
> +	clk_disable_unprepare(fifo->pclk);
> +free_irq:
> +	free_irq(fifo->irq, ss);
>  	return ret;
>  }
>  EXPORT_SYMBOL_GPL(axg_fifo_pcm_open);