diff options
author | Julia Lawall <julia.lawall@lip6.fr> | 2011-12-29 16:51:26 (GMT) |
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committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-01-02 13:08:13 (GMT) |
commit | 6d8955262ab4cbfcb3ddaca4f978d27d9c088a75 (patch) | |
tree | 130ac129e273e3eda656a99f6c0facba14ab9d7b /sound/soc/au1x/i2sc.c | |
parent | 8d9626d72833bf68791e4cf9ac151c96c44c0f87 (diff) | |
download | linux-6d8955262ab4cbfcb3ddaca4f978d27d9c088a75.tar.xz |
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/i2sc.c')
-rw-r--r-- | sound/soc/au1x/i2sc.c | 45 |
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; } |