Commit 10974ccf authored Dec 20, 2015 by Julia Lawall Committed by Mark Brown Dec 23, 2015

ASoC: imx-pcm-dma: add NULL test

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.Lawall@lip6.fr>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent 8005c49d

sound/soc/fsl/imx-pcm-dma.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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;