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authorJingoo Han <jg1.han@samsung.com>2013-07-03 15:07:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 16:07:55 -0700
commit618c300305c6ee7c71a1493da97c48c24205268c (patch)
tree594713bf21e7be0dad784e10c1c4c1c657d7d6cc /drivers/rtc/rtc-pxa.c
parentc417299ce7d77521225f2aff471d3f7ee5f34b1e (diff)
rtc: rtc-pxa: use devm_*() functions
Use devm_*() functions to make cleanup paths simpler. Signed-off-by: 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-pxa.c')
-rw-r--r--drivers/rtc/rtc-pxa.c43
1 files changed, 12 insertions, 31 deletions
diff --git a/drivers/rtc/rtc-pxa.c b/drivers/rtc/rtc-pxa.c
index ed037ae91c5f..a355f2b82bb8 100644
--- a/drivers/rtc/rtc-pxa.c
+++ b/drivers/rtc/rtc-pxa.c
@@ -324,37 +324,35 @@ static int __init pxa_rtc_probe(struct platform_device *pdev)
int ret;
u32 rttr;
- pxa_rtc = kzalloc(sizeof(struct pxa_rtc), GFP_KERNEL);
+ pxa_rtc = devm_kzalloc(dev, sizeof(*pxa_rtc), GFP_KERNEL);
if (!pxa_rtc)
return -ENOMEM;
spin_lock_init(&pxa_rtc->lock);
platform_set_drvdata(pdev, pxa_rtc);
- ret = -ENXIO;
pxa_rtc->ress = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!pxa_rtc->ress) {
dev_err(dev, "No I/O memory resource defined\n");
- goto err_ress;
+ return -ENXIO;
}
pxa_rtc->irq_1Hz = platform_get_irq(pdev, 0);
if (pxa_rtc->irq_1Hz < 0) {
dev_err(dev, "No 1Hz IRQ resource defined\n");
- goto err_ress;
+ return -ENXIO;
}
pxa_rtc->irq_Alrm = platform_get_irq(pdev, 1);
if (pxa_rtc->irq_Alrm < 0) {
dev_err(dev, "No alarm IRQ resource defined\n");
- goto err_ress;
+ return -ENXIO;
}
pxa_rtc_open(dev);
- ret = -ENOMEM;
- pxa_rtc->base = ioremap(pxa_rtc->ress->start,
+ pxa_rtc->base = devm_ioremap(dev, pxa_rtc->ress->start,
resource_size(pxa_rtc->ress));
if (!pxa_rtc->base) {
- dev_err(&pdev->dev, "Unable to map pxa RTC I/O memory\n");
- goto err_map;
+ dev_err(dev, "Unable to map pxa RTC I/O memory\n");
+ return -ENOMEM;
}
/*
@@ -370,41 +368,24 @@ static int __init pxa_rtc_probe(struct platform_device *pdev)
rtsr_clear_bits(pxa_rtc, RTSR_PIALE | RTSR_RDALE1 | RTSR_HZE);
- pxa_rtc->rtc = rtc_device_register("pxa-rtc", &pdev->dev, &pxa_rtc_ops,
- THIS_MODULE);
- ret = PTR_ERR(pxa_rtc->rtc);
+ pxa_rtc->rtc = devm_rtc_device_register(&pdev->dev, "pxa-rtc",
+ &pxa_rtc_ops, THIS_MODULE);
if (IS_ERR(pxa_rtc->rtc)) {
+ ret = PTR_ERR(pxa_rtc->rtc);
dev_err(dev, "Failed to register RTC device -> %d\n", ret);
- goto err_rtc_reg;
+ return ret;
}
device_init_wakeup(dev, 1);
return 0;
-
-err_rtc_reg:
- iounmap(pxa_rtc->base);
-err_ress:
-err_map:
- kfree(pxa_rtc);
- return ret;
}
static int __exit pxa_rtc_remove(struct platform_device *pdev)
{
- struct pxa_rtc *pxa_rtc = platform_get_drvdata(pdev);
-
struct device *dev = &pdev->dev;
- pxa_rtc_release(dev);
-
- rtc_device_unregister(pxa_rtc->rtc);
-
- spin_lock_irq(&pxa_rtc->lock);
- iounmap(pxa_rtc->base);
- spin_unlock_irq(&pxa_rtc->lock);
-
- kfree(pxa_rtc);
+ pxa_rtc_release(dev);
return 0;
}