linux-kernel - Re: [PATCH 15/17] ASoC: ti: omap-mcsp: remove duplicate test

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Date:   Mon, 29 Mar 2021 08:56:03 +0300
From:   Péter Ujfalusi <peter.ujfalusi@...il.com>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        alsa-devel@...a-project.org
Cc:     tiwai@...e.de, broonie@...nel.org, linux-kernel@...r.kernel.org,
        Jarkko Nikula <jarkko.nikula@...mer.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        "open list:OMAP AUDIO SUPPORT" <linux-omap@...r.kernel.org>
Subject: Re: [PATCH 15/17] ASoC: ti: omap-mcsp: remove duplicate test

Hi Pierre,

On 3/26/21 11:59 PM, Pierre-Louis Bossart wrote:
> cppcheck warning:
> 
> sound/soc/ti/omap-mcbsp.c:379:11: style: The if condition is the same
> as the previous if condition [duplicateCondition]
> 
>  if (mcbsp->irq) {
>           ^
> sound/soc/ti/omap-mcbsp.c:376:11: note: First condition
>  if (mcbsp->irq)
>           ^
> sound/soc/ti/omap-mcbsp.c:379:11: note: Second condition
>  if (mcbsp->irq) {
>           ^
> 
> Keeping two separate tests was probably intentional for clarity, but
> since this generates warnings we might as well make cppcheck happy so
> that we have fewer warnings.

There might be other historical reasons why it ended up like this but
merging them does not make it less cleaner.

Acked-by: Peter Ujfalusi <peter.ujfalusi@...il.com>

> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
> ---
>  sound/soc/ti/omap-mcbsp.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/sound/soc/ti/omap-mcbsp.c b/sound/soc/ti/omap-mcbsp.c
> index 6025b30bbe77..db47981768c5 100644
> --- a/sound/soc/ti/omap-mcbsp.c
> +++ b/sound/soc/ti/omap-mcbsp.c
> @@ -373,10 +373,9 @@ static void omap_mcbsp_free(struct omap_mcbsp *mcbsp)
>  		MCBSP_WRITE(mcbsp, WAKEUPEN, 0);
>  
>  	/* Disable interrupt requests */
> -	if (mcbsp->irq)
> +	if (mcbsp->irq) {
>  		MCBSP_WRITE(mcbsp, IRQEN, 0);
>  
> -	if (mcbsp->irq) {
>  		free_irq(mcbsp->irq, (void *)mcbsp);
>  	} else {
>  		free_irq(mcbsp->rx_irq, (void *)mcbsp);
> 

-- 
Péter