* [PATCH] ASoC: amd: move the call to devm_kzalloc below platform_get_resource()
@ 2020-10-19 12:31 Defang Bo
2020-10-19 13:43 ` Mark Brown
0 siblings, 1 reply; 2+ messages in thread
From: Defang Bo @ 2020-10-19 12:31 UTC (permalink / raw)
To: lgirdwood, broonie, perex, tiwai, Vishnuvardhanrao.Ravulapati
Cc: alsa-devel, linux-kernel, Defang Bo, akshu.agrawal
Just as the commit <4cb79ef9c6c4>("ASoC: amd: Fix potential NULL pointer dereference"),it makes no sense to allocate any resources if res = platform_get_resource(pdev, IORESOURCE_MEM, 0); fails,so move the call to devm_kzalloc() below the mentioned code.
Signed-off-by: Defang Bo <bodefang@126.com>
---
sound/soc/amd/raven/acp3x-i2s.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/sound/soc/amd/raven/acp3x-i2s.c b/sound/soc/amd/raven/acp3x-i2s.c
index a532e01..c9c69eb 100644
--- a/sound/soc/amd/raven/acp3x-i2s.c
+++ b/sound/soc/amd/raven/acp3x-i2s.c
@@ -302,16 +302,14 @@ static int acp3x_dai_probe(struct platform_device *pdev)
struct i2s_dev_data *adata;
int ret;
- adata = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dev_data),
- GFP_KERNEL);
- if (!adata)
- return -ENOMEM;
-
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
return -ENOMEM;
}
+ adata = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dev_data), GFP_KERNEL);
+ if (!adata)
+ return -ENOMEM;
adata->acp3x_base = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
if (!adata->acp3x_base)
--
1.9.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ASoC: amd: move the call to devm_kzalloc below platform_get_resource()
2020-10-19 12:31 [PATCH] ASoC: amd: move the call to devm_kzalloc below platform_get_resource() Defang Bo
@ 2020-10-19 13:43 ` Mark Brown
0 siblings, 0 replies; 2+ messages in thread
From: Mark Brown @ 2020-10-19 13:43 UTC (permalink / raw)
To: Defang Bo
Cc: alsa-devel, lgirdwood, linux-kernel, tiwai, akshu.agrawal,
Vishnuvardhanrao.Ravulapati
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On Mon, Oct 19, 2020 at 08:31:29PM +0800, Defang Bo wrote:
> Just as the commit <4cb79ef9c6c4>("ASoC: amd: Fix potential NULL pointer dereference"),it makes no sense to allocate any resources if res = platform_get_resource(pdev, IORESOURCE_MEM, 0); fails,so move the call to devm_kzalloc() below the mentioned code.
Please keep your commit message wrapped at below 80 columns.
> - if (!adata)
> - return -ENOMEM;
> -
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> if (!res) {
> dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
> return -ENOMEM;
> }
> + adata = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dev_data), GFP_KERNEL);
This is missing a blank line between the two code blocks.
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