On Sun, Dec 20, 2015 at 12:15:50PM +0100, Julia Lawall wrote:
> Add NULL test on call to devm_kzalloc.
> 
> The semantic match that finds this problem is as follows:
> (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> expression x;
> @@
> 
> * x = devm_kzalloc(...);
>   ... when != x == NULL
>   *x
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia.law...@lip6.fr>

Acked-by: Nicolin Chen <nicoleots...@gmail.com>

Thank you

> 
> ---
>  sound/soc/fsl/imx-pcm-dma.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c
> index 1fc01ed..f3d3d1f 100644
> --- a/sound/soc/fsl/imx-pcm-dma.c
> +++ b/sound/soc/fsl/imx-pcm-dma.c
> @@ -62,6 +62,8 @@ int imx_pcm_dma_init(struct platform_device *pdev, size_t 
> size)
>  
>       config = devm_kzalloc(&pdev->dev,
>                       sizeof(struct snd_dmaengine_pcm_config), GFP_KERNEL);
> +     if (!config)
> +             return -ENOMEM;
>       *config = imx_dmaengine_pcm_config;
>       if (size)
>               config->prealloc_buffer_size = size;
> 
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