[alsa-devel] [PATCH] ASoC: samsung: s3c24xx-i2s: Fix return value check in s3c24xx_iis_dev_probe()

[Varka Bhadram]

On 04/16/2015 05:48 PM, weiyj_lk at 163.com wrote:

> From: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
>
> In case of error, the function devm_ioremap_resource() returns
> ERR_PTR() and never returns NULL. The NULL test in the return
> value check should be replaced with IS_ERR().

This bug is there in other drivers in sound/soc/samsung/

Try do for all the drivers.

> Signed-off-by: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
> ---
>  sound/soc/samsung/s3c24xx-i2s.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/sound/soc/samsung/s3c24xx-i2s.c b/sound/soc/samsung/s3c24xx-i2s.c
> index 326d3c3..5bf7236 100644
> --- a/sound/soc/samsung/s3c24xx-i2s.c
> +++ b/sound/soc/samsung/s3c24xx-i2s.c
> @@ -461,8 +461,8 @@ static int s3c24xx_iis_dev_probe(struct platform_device *pdev)
>  		return -ENOENT;
>  	}
>  	s3c24xx_i2s.regs = devm_ioremap_resource(&pdev->dev, res);
> -	if (s3c24xx_i2s.regs == NULL)
> -		return -ENXIO;
> +	if (IS_ERR(s3c24xx_i2s.regs))
> +		return PTR_ERR(s3c24xx_i2s.regs);
>  
>  	s3c24xx_i2s_pcm_stereo_out.dma_addr = res->start + S3C2410_IISFIFO;
>  	s3c24xx_i2s_pcm_stereo_in.dma_addr = res->start + S3C2410_IISFIFO;
>
> --
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-- 
Varka Bhadram