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authorJingoo Han <jg1.han@samsung.com>2013-02-22 04:45:37 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-22 05:22:30 +0400
commit0db29c1da74b9fb08abaebc386300c60ef99cd29 (patch)
tree95fade2c131108d3d69c9e53be1f460373b804f0 /drivers/rtc/rtc-vt8500.c
parent190ab4af143d10e7b81a94050d94570b8054a870 (diff)
downloadlinux-0db29c1da74b9fb08abaebc386300c60ef99cd29.tar.xz
rtc: rtc-vt8500: use devm_*() functions
Use devm_*() functions to make cleanup paths more simple. 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-vt8500.c')
-rw-r--r--drivers/rtc/rtc-vt8500.c28
1 files changed, 10 insertions, 18 deletions
diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c
index 2730533e2d2d..a000bc0a8bff 100644
--- a/drivers/rtc/rtc-vt8500.c
+++ b/drivers/rtc/rtc-vt8500.c
@@ -231,20 +231,21 @@ static int vt8500_rtc_probe(struct platform_device *pdev)
return -ENXIO;
}
- vt8500_rtc->res = request_mem_region(vt8500_rtc->res->start,
- resource_size(vt8500_rtc->res),
- "vt8500-rtc");
+ vt8500_rtc->res = devm_request_mem_region(&pdev->dev,
+ vt8500_rtc->res->start,
+ resource_size(vt8500_rtc->res),
+ "vt8500-rtc");
if (vt8500_rtc->res == NULL) {
dev_err(&pdev->dev, "failed to request I/O memory\n");
return -EBUSY;
}
- vt8500_rtc->regbase = ioremap(vt8500_rtc->res->start,
+ vt8500_rtc->regbase = devm_ioremap(&pdev->dev, vt8500_rtc->res->start,
resource_size(vt8500_rtc->res));
if (!vt8500_rtc->regbase) {
dev_err(&pdev->dev, "Unable to map RTC I/O memory\n");
ret = -EBUSY;
- goto err_release;
+ goto err_return;
}
/* Enable RTC and set it to 24-hour mode */
@@ -257,11 +258,11 @@ static int vt8500_rtc_probe(struct platform_device *pdev)
ret = PTR_ERR(vt8500_rtc->rtc);
dev_err(&pdev->dev,
"Failed to register RTC device -> %d\n", ret);
- goto err_unmap;
+ goto err_return;
}
- ret = request_irq(vt8500_rtc->irq_alarm, vt8500_rtc_irq, 0,
- "rtc alarm", vt8500_rtc);
+ ret = devm_request_irq(&pdev->dev, vt8500_rtc->irq_alarm,
+ vt8500_rtc_irq, 0, "rtc alarm", vt8500_rtc);
if (ret < 0) {
dev_err(&pdev->dev, "can't get irq %i, err %d\n",
vt8500_rtc->irq_alarm, ret);
@@ -272,11 +273,7 @@ static int vt8500_rtc_probe(struct platform_device *pdev)
err_unreg:
rtc_device_unregister(vt8500_rtc->rtc);
-err_unmap:
- iounmap(vt8500_rtc->regbase);
-err_release:
- release_mem_region(vt8500_rtc->res->start,
- resource_size(vt8500_rtc->res));
+err_return:
return ret;
}
@@ -284,15 +281,10 @@ static int vt8500_rtc_remove(struct platform_device *pdev)
{
struct vt8500_rtc *vt8500_rtc = platform_get_drvdata(pdev);
- free_irq(vt8500_rtc->irq_alarm, vt8500_rtc);
-
rtc_device_unregister(vt8500_rtc->rtc);
/* Disable alarm matching */
writel(0, vt8500_rtc->regbase + VT8500_RTC_IS);
- iounmap(vt8500_rtc->regbase);
- release_mem_region(vt8500_rtc->res->start,
- resource_size(vt8500_rtc->res));
platform_set_drvdata(pdev, NULL);