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authorJulia Lawall <julia.lawall@lip6.fr>2011-12-29 17:51:26 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-01-02 13:08:13 +0000
commit6d8955262ab4cbfcb3ddaca4f978d27d9c088a75 (patch)
tree130ac129e273e3eda656a99f6c0facba14ab9d7b /sound/soc/au1x
parent8d9626d72833bf68791e4cf9ac151c96c44c0f87 (diff)
downloadop-kernel-dev-6d8955262ab4cbfcb3ddaca4f978d27d9c088a75.zip
op-kernel-dev-6d8955262ab4cbfcb3ddaca4f978d27d9c088a75.tar.gz
ASoC: i2sc.c: use devm_ functions
The various devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc, devm_request_mem_region and devm_ioremap for data that is allocated in the probe function of a platform device and is only freed in the remove function. Signed-off-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/au1x')
-rw-r--r--sound/soc/au1x/i2sc.c45
1 files changed, 13 insertions, 32 deletions
diff --git a/sound/soc/au1x/i2sc.c b/sound/soc/au1x/i2sc.c
index cb53ad8..d4b9e36 100644
--- a/sound/soc/au1x/i2sc.c
+++ b/sound/soc/au1x/i2sc.c
@@ -227,69 +227,50 @@ static struct snd_soc_dai_driver au1xi2s_dai_driver = {
static int __devinit au1xi2s_drvprobe(struct platform_device *pdev)
{
- int ret;
struct resource *iores, *dmares;
struct au1xpsc_audio_data *ctx;
- ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!iores) {
- ret = -ENODEV;
- goto out0;
- }
+ if (!iores)
+ return -ENODEV;
- ret = -EBUSY;
- if (!request_mem_region(iores->start, resource_size(iores),
- pdev->name))
- goto out0;
+ if (!devm_request_mem_region(&pdev->dev, iores->start,
+ resource_size(iores),
+ pdev->name))
+ return -EBUSY;
- ctx->mmio = ioremap_nocache(iores->start, resource_size(iores));
+ ctx->mmio = devm_ioremap_nocache(&pdev->dev, iores->start,
+ resource_size(iores));
if (!ctx->mmio)
- goto out1;
+ return -EBUSY;
dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (!dmares)
- goto out2;
+ return -EBUSY;
ctx->dmaids[SNDRV_PCM_STREAM_PLAYBACK] = dmares->start;
dmares = platform_get_resource(pdev, IORESOURCE_DMA, 1);
if (!dmares)
- goto out2;
+ return -EBUSY;
ctx->dmaids[SNDRV_PCM_STREAM_CAPTURE] = dmares->start;
platform_set_drvdata(pdev, ctx);
- ret = snd_soc_register_dai(&pdev->dev, &au1xi2s_dai_driver);
- if (ret)
- goto out2;
-
- return 0;
-
-out2:
- iounmap(ctx->mmio);
-out1:
- release_mem_region(iores->start, resource_size(iores));
-out0:
- kfree(ctx);
- return ret;
+ return snd_soc_register_dai(&pdev->dev, &au1xi2s_dai_driver);
}
static int __devexit au1xi2s_drvremove(struct platform_device *pdev)
{
struct au1xpsc_audio_data *ctx = platform_get_drvdata(pdev);
- struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
snd_soc_unregister_dai(&pdev->dev);
WR(ctx, I2S_ENABLE, EN_D); /* clock off, disable */
- iounmap(ctx->mmio);
- release_mem_region(r->start, resource_size(r));
- kfree(ctx);
-
return 0;
}
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