From 8d9626d72833bf68791e4cf9ac151c96c44c0f87 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 29 Dec 2011 17:51:25 +0100 Subject: 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 Signed-off-by: Mark Brown --- sound/soc/au1x/psc-ac97.c | 41 ++++++++++++++--------------------------- 1 file changed, 14 insertions(+), 27 deletions(-) (limited to 'sound') diff --git a/sound/soc/au1x/psc-ac97.c b/sound/soc/au1x/psc-ac97.c index 87daf456b1c9..476b79a1c11a 100644 --- a/sound/soc/au1x/psc-ac97.c +++ b/sound/soc/au1x/psc-ac97.c @@ -368,35 +368,35 @@ static int __devinit au1xpsc_ac97_drvprobe(struct platform_device *pdev) 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 @@ static int __devinit au1xpsc_ac97_drvprobe(struct platform_device *pdev) 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 @@ static int __devexit au1xpsc_ac97_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); - au1xpsc_ac97_workdata = NULL; /* MDEV */ return 0; -- cgit v1.2.3