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path: root/drivers/rtc/rtc-m48t35.c
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Diffstat (limited to 'drivers/rtc/rtc-m48t35.c')
-rw-r--r--drivers/rtc/rtc-m48t35.c42
1 files changed, 10 insertions, 32 deletions
diff --git a/drivers/rtc/rtc-m48t35.c b/drivers/rtc/rtc-m48t35.c
index 31c9190a1fc..37444246e5e 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;
}