From: Julia Lawall <julia@xxxxxxx> 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 variable res_size is then no longer needed. 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@xxxxxxx> --- drivers/watchdog/imx2_wdt.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c index b8ef2c6..c44c333 100644 --- a/drivers/watchdog/imx2_wdt.c +++ b/drivers/watchdog/imx2_wdt.c @@ -247,7 +247,6 @@ static struct miscdevice imx2_wdt_miscdev = { static int __init imx2_wdt_probe(struct platform_device *pdev) { int ret; - int res_size; struct resource *res; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -256,15 +255,7 @@ static int __init imx2_wdt_probe(struct platform_device *pdev) return -ENODEV; } - res_size = resource_size(res); - if (!devm_request_mem_region(&pdev->dev, res->start, res_size, - res->name)) { - dev_err(&pdev->dev, "can't allocate %d bytes at %d address\n", - res_size, res->start); - return -ENOMEM; - } - - imx2_wdt.base = devm_ioremap_nocache(&pdev->dev, res->start, res_size); + imx2_wdt.base = devm_request_and_ioremap(&pdev->dev, res); if (!imx2_wdt.base) { dev_err(&pdev->dev, "ioremap failed\n"); return -ENOMEM; -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
