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| author | Sachin Kamat <sachin.kamat@linaro.org> | 2013-04-29 16:20:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 18:28:36 -0700 |
| commit | 4f58cd9b4663ac52c8b019e78b0f4eae37da297e (patch) | |
| tree | 26458cf90c6d75989d2d6e4fa7a71422d219b3f8 /drivers/rtc/rtc-m48t35.c | |
| parent | 66714612783525bf3fd389f886822d89d1be2cbf (diff) | |
| download | linux-4f58cd9b4663ac52c8b019e78b0f4eae37da297e.tar.gz linux-4f58cd9b4663ac52c8b019e78b0f4eae37da297e.tar.bz2 linux-4f58cd9b4663ac52c8b019e78b0f4eae37da297e.zip | |
drivers/rtc/rtc-m48t35.c: use devm_* APIs
devm_* functions are device managed and make cleanup code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/rtc-m48t35.c')
| -rw-r--r-- | drivers/rtc/rtc-m48t35.c | 42 |
1 files changed, 10 insertions, 32 deletions
diff --git a/drivers/rtc/rtc-m48t35.c b/drivers/rtc/rtc-m48t35.c index 31c9190a1fcb..37444246e5e4 100644 --- a/drivers/rtc/rtc-m48t35.c +++ b/drivers/rtc/rtc-m48t35.c @@ -145,12 +145,11 @@ static int m48t35_probe(struct platform_device *pdev) { struct resource *res; struct m48t35_priv *priv; - int ret = 0; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) return -ENODEV; - priv = kzalloc(sizeof(struct m48t35_priv), GFP_KERNEL); + priv = devm_kzalloc(&pdev->dev, sizeof(struct m48t35_priv), GFP_KERNEL); if (!priv) return -ENOMEM; @@ -160,50 +159,29 @@ static int m48t35_probe(struct platform_device *pdev) * conflicts are resolved */ #ifndef CONFIG_SGI_IP27 - if (!request_mem_region(res->start, priv->size, pdev->name)) { - ret = -EBUSY; - goto out; - } + if (!devm_request_mem_region(&pdev->dev, res->start, priv->size, + pdev->name)) + return -EBUSY; #endif priv->baseaddr = res->start; - priv->reg = ioremap(priv->baseaddr, priv->size); - if (!priv->reg) { - ret = -ENOMEM; - goto out; - } + priv->reg = devm_ioremap(&pdev->dev, priv->baseaddr, priv->size); + if (!priv->reg) + return -ENOMEM; spin_lock_init(&priv->lock); platform_set_drvdata(pdev, priv); - priv->rtc = rtc_device_register("m48t35", &pdev->dev, + priv->rtc = devm_rtc_device_register(&pdev->dev, "m48t35", &m48t35_ops, THIS_MODULE); - if (IS_ERR(priv->rtc)) { - ret = PTR_ERR(priv->rtc); - goto out; - } + if (IS_ERR(priv->rtc)) + return PTR_ERR(priv->rtc); return 0; - -out: - if (priv->reg) - iounmap(priv->reg); - if (priv->baseaddr) - release_mem_region(priv->baseaddr, priv->size); - kfree(priv); - return ret; } static int m48t35_remove(struct platform_device *pdev) { - struct m48t35_priv *priv = platform_get_drvdata(pdev); - - rtc_device_unregister(priv->rtc); - iounmap(priv->reg); -#ifndef CONFIG_SGI_IP27 - release_mem_region(priv->baseaddr, priv->size); -#endif - kfree(priv); return 0; } |