ASoC: psc-ac97.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>
diff --git a/sound/soc/au1x/psc-ac97.c b/sound/soc/au1x/psc-ac97.c
index 87daf45..476b79a 100644
--- a/sound/soc/au1x/psc-ac97.c
+++ b/sound/soc/au1x/psc-ac97.c
@@ -368,35 +368,35 @@
unsigned long sel;
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;
mutex_init(&wd->lock);
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;
/* configuration: max dma trigger threshold, enable ac97 */
@@ -421,24 +421,15 @@
ret = snd_soc_register_dai(&pdev->dev, &wd->dai_drv);
if (ret)
- goto out2;
+ return ret;
au1xpsc_ac97_workdata = wd;
return 0;
-
-out2:
- iounmap(wd->mmio);
-out1:
- release_mem_region(iores->start, resource_size(iores));
-out0:
- kfree(wd);
- return ret;
}
static int __devexit au1xpsc_ac97_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);
@@ -448,10 +439,6 @@
au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
au_sync();
- iounmap(wd->mmio);
- release_mem_region(r->start, resource_size(r));
- kfree(wd);
-
au1xpsc_ac97_workdata = NULL; /* MDEV */
return 0;