lkml.org 
[lkml]   [2015]   [Dec]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/4] ASoC: imx-pcm-dma: add NULL test
Date
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>

---
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;


\
 
 \ /
  Last update: 2015-12-20 12:41    [W:0.068 / U:0.260 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site