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authorJulia Lawall <Julia.Lawall@lip6.fr>2013-09-11 14:24:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-11 15:58:59 -0700
commit7c1d69ee11b8986c40a53d8e2238204fc86f5b33 (patch)
treee711a10129ef7b6e060fdfa82dc7eb31f55be2d8 /drivers/rtc/rtc-mxc.c
parent1735be4b822e8e3808f461372ff3942824790172 (diff)
downloadlinux-7c1d69ee11b8986c40a53d8e2238204fc86f5b33.tar.gz
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-mxc.c')
-rw-r--r--drivers/rtc/rtc-mxc.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index ab87bacb8f88..50c572645546 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -377,22 +377,16 @@ static int mxc_rtc_probe(struct platform_device *pdev)
 	unsigned long rate;
 	int ret;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENODEV;
-
 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
 		return -ENOMEM;
 
 	pdata->devtype = pdev->id_entry->driver_data;
 
-	if (!devm_request_mem_region(&pdev->dev, res->start,
-				     resource_size(res), pdev->name))
-		return -EBUSY;
-
-	pdata->ioaddr = devm_ioremap(&pdev->dev, res->start,
-				     resource_size(res));
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	pdata->ioaddr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(pdata->ioaddr))
+		return PTR_ERR(pdata->ioaddr);
 
 	pdata->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(pdata->clk)) {