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watchdog: dw_wdt.c: use devm_request_and_ioremap

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Reimplement a call to devm_request_mem_region followed by a call to ioremap
or ioremap_nocache by a call to devm_request_and_ioremap.

The semantic patch that makes this transformation is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@nm@
expression myname;
identifier i;
@@

struct platform_driver i = { .driver = { .name = myname } };

@@
expression dev,res,size;
expression nm.myname;
@@

-if (!devm_request_mem_region(dev, res->start, size,
-                              \(res->name\|dev_name(dev)\|myname\))) {
-   ...
-   return ...;
-}
... when != res->start
(
-devm_ioremap(dev,res->start,size)
+devm_request_and_ioremap(dev,res)
|
-devm_ioremap_nocache(dev,res->start,size)
+devm_request_and_ioremap(dev,res)
)
... when any
    when != res->start
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Julia Lawall 2011-12-27 15:01:29 +01:00 committed by Wim Van Sebroeck
parent 5d32d4868a
commit 52ea9a7d79
1 changed files with 1 additions and 5 deletions
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6
drivers/watchdog/dw_wdt.c
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@ -300,11 +300,7 @@ static int __devinit dw_wdt_drv_probe(struct platform_device *pdev)
if (!mem)
return -EINVAL;
if (!devm_request_mem_region(&pdev->dev, mem->start, resource_size(mem),
"dw_wdt"))
return -ENOMEM;
dw_wdt.regs = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
dw_wdt.regs = devm_request_and_ioremap(&pdev->dev, mem);
if (!dw_wdt.regs)
return -ENOMEM;