Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 4/6] drivers/watchdog/dw_wdt.c: use devm_request_and_ioremap | Date | Tue, 27 Dec 2011 15:01:29 +0100 |
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From: Julia Lawall <julia@diku.dk>
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>
--- drivers/watchdog/dw_wdt.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c index 1b0e3dd..63d7b58 100644 --- a/drivers/watchdog/dw_wdt.c +++ b/drivers/watchdog/dw_wdt.c @@ -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;
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