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authorJulia Lawall <julia.lawall@lip6.fr>2011-12-29 17:51:24 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-01-02 13:08:02 +0000
commitaa4079c110133e5ed86895a07bffb20dd20ed40e (patch)
treebe8136dfc3e36ec6eb012df3fb02bdbd6422e63b /sound/soc/au1x
parentcd0ff7eff08e7daeba278cf58392aac519edff60 (diff)
downloadlinux-aa4079c110133e5ed86895a07bffb20dd20ed40e.tar.bz2
ASoC: psc-i2s.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/psc-i2s.c42
1 files changed, 14 insertions, 28 deletions
diff --git a/sound/soc/au1x/psc-i2s.c b/sound/soc/au1x/psc-i2s.c
index 5c1dc8a141ab..0607ba3d9258 100644
--- a/sound/soc/au1x/psc-i2s.c
+++ b/sound/soc/au1x/psc-i2s.c
@@ -295,33 +295,34 @@ static int __devinit au1xpsc_i2s_drvprobe(struct platform_device *pdev)
int ret;
struct au1xpsc_audio_data *wd;
- wd = kzalloc(sizeof(struct au1xpsc_audio_data), GFP_KERNEL);
+ wd = devm_kzalloc(&pdev->dev, sizeof(struct au1xpsc_audio_data),
+ GFP_KERNEL);
if (!wd)
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;
- wd->mmio = ioremap(iores->start, resource_size(iores));
+ wd->mmio = devm_ioremap(&pdev->dev, iores->start,
+ resource_size(iores));
if (!wd->mmio)
- goto out1;
+ return -EBUSY;
dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (!dmares)
- goto out2;
+ return -EBUSY;
wd->dmaids[SNDRV_PCM_STREAM_PLAYBACK] = dmares->start;
dmares = platform_get_resource(pdev, IORESOURCE_DMA, 1);
if (!dmares)
- goto out2;
+ return -EBUSY;
wd->dmaids[SNDRV_PCM_STREAM_CAPTURE] = dmares->start;
/* preserve PSC clock source set up by platform (dev.platform_data
@@ -349,23 +350,12 @@ static int __devinit au1xpsc_i2s_drvprobe(struct platform_device *pdev)
platform_set_drvdata(pdev, wd);
- ret = snd_soc_register_dai(&pdev->dev, &wd->dai_drv);
- if (!ret)
- return 0;
-
-out2:
- iounmap(wd->mmio);
-out1:
- release_mem_region(iores->start, resource_size(iores));
-out0:
- kfree(wd);
- return ret;
+ return snd_soc_register_dai(&pdev->dev, &wd->dai_drv);
}
static int __devexit au1xpsc_i2s_drvremove(struct platform_device *pdev)
{
struct au1xpsc_audio_data *wd = platform_get_drvdata(pdev);
- struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
snd_soc_unregister_dai(&pdev->dev);
@@ -374,10 +364,6 @@ static int __devexit au1xpsc_i2s_drvremove(struct platform_device *pdev)
au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
au_sync();
- iounmap(wd->mmio);
- release_mem_region(r->start, resource_size(r));
- kfree(wd);
-
return 0;
}