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authorJulia Lawall <Julia.Lawall@lip6.fr>2013-09-12 01:24:27 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-12 02:58:59 +0400
commit7c1d69ee11b8986c40a53d8e2238204fc86f5b33 (patch)
treee711a10129ef7b6e060fdfa82dc7eb31f55be2d8 /drivers/rtc/rtc-ep93xx.c
parent1735be4b822e8e3808f461372ff3942824790172 (diff)
downloadlinux-7c1d69ee11b8986c40a53d8e2238204fc86f5b33.tar.xz
rtc: simplify devm_request_mem_region/devm_ioremap
Convert the composition of devm_request_mem_region and devm_ioremap to a single call to devm_ioremap_resource. The associated call to platform_get_resource is also simplified and moved next to the new call to devm_ioremap_resource. This was done using a combination of the semantic patches devm_ioremap_resource.cocci and devm_request_and_ioremap.cocci, found in the scripts/coccinelle/api directory. In rtc-lpc32xx.c and rtc-mv.c, the local variable size is no longer needed. In rtc-ds1511.c the size field of the local structure is not useful any more, and is deleted. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/rtc-ep93xx.c')
-rw-r--r--drivers/rtc/rtc-ep93xx.c14
1 files changed, 3 insertions, 11 deletions
diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c
index 549b3c3792d2..580e7b56bde8 100644
--- a/drivers/rtc/rtc-ep93xx.c
+++ b/drivers/rtc/rtc-ep93xx.c
@@ -138,17 +138,9 @@ static int ep93xx_rtc_probe(struct platform_device *pdev)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENXIO;
-
- if (!devm_request_mem_region(&pdev->dev, res->start,
- resource_size(res), pdev->name))
- return -EBUSY;
-
- ep93xx_rtc->mmio_base = devm_ioremap(&pdev->dev, res->start,
- resource_size(res));
- if (!ep93xx_rtc->mmio_base)
- return -ENXIO;
+ ep93xx_rtc->mmio_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(ep93xx_rtc->mmio_base))
+ return PTR_ERR(ep93xx_rtc->mmio_base);
pdev->dev.platform_data = ep93xx_rtc;
platform_set_drvdata(pdev, ep93xx_rtc);