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rtc: rtc-coh901331: use devm_ioremap_resource() 

Use devm_ioremap_resource() in order to make the code simpler, and
remove redundant return value check of platform_get_resource() because
the value is checked by devm_ioremap_resource().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jingoo Han 2014-04-03 14:49:47 -07:00 committed by Linus Torvalds
parent 681acc9f53
commit daaf90f0b0
1 changed files with 3 additions and 15 deletions
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18
drivers/rtc/rtc-coh901331.c
View File

@ -43,8 +43,6 @@
struct coh901331_port {
struct rtc_device *rtc;
struct clk *clk;
u32 phybase;
u32 physize;
void __iomem *virtbase;
int irq;
#ifdef CONFIG_PM_SLEEP
@ -173,19 +171,9 @@ static int __init coh901331_probe(struct platform_device *pdev)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENOENT;
rtap->phybase = res->start;
rtap->physize = resource_size(res);
if (devm_request_mem_region(&pdev->dev, rtap->phybase, rtap->physize,
"rtc-coh901331") == NULL)
return -EBUSY;
rtap->virtbase = devm_ioremap(&pdev->dev, rtap->phybase, rtap->physize);
if (!rtap->virtbase)
return -ENOMEM;
rtap->virtbase = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(rtap->virtbase))
return PTR_ERR(rtap->virtbase);
rtap->irq = platform_get_irq(pdev, 0);
if (devm_request_irq(&pdev->dev, rtap->irq, coh901331_interrupt, 0,