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authorJulia Lawall <Julia.Lawall@lip6.fr>2013-08-14 13:11:24 +0400
committerWim Van Sebroeck <wim@iguana.be>2013-09-10 23:21:26 +0400
commitbd5cc119ef6bbe8ad64a303542c436c7a82498b7 (patch)
tree4cd7183f5a15e2cb15d8e564f2e28d79272ce4ac /drivers/watchdog
parent8ecc7d2b2207ed9642e3d0140bfaa8c93a6ea47f (diff)
downloadlinux-bd5cc119ef6bbe8ad64a303542c436c7a82498b7.tar.xz
watchdog: s3c2410_wdt: simplify use of devm_ioremap_resource
Remove unneeded error handling on the result of a call to platform_get_resource when the value is passed to devm_ioremap_resource. Move the call to platform_get_resource adjacent to the call to devm_ioremap_resource to make the connection between them more clear. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression pdev,res,n,e,e1; expression ret != 0; identifier l; @@ - res = platform_get_resource(pdev, IORESOURCE_MEM, n); ... when != res - if (res == NULL) { ... \(goto l;\|return ret;\) } ... when != res + res = platform_get_resource(pdev, IORESOURCE_MEM, n); e = devm_ioremap_resource(e1, res); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/s3c2410_wdt.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index 43d280718709..23aad7c6bf5d 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -353,11 +353,6 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
wdt->dev = &pdev->dev;
spin_lock_init(&wdt->lock);
wdt->wdt_device = s3c2410_wdd;
- wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (wdt_mem == NULL) {
- dev_err(dev, "no memory resource specified\n");
- return -ENOENT;
- }
wdt_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (wdt_irq == NULL) {
@@ -367,6 +362,7 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
}
/* get the memory region for the watchdog timer */
+ wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
wdt->reg_base = devm_ioremap_resource(dev, wdt_mem);
if (IS_ERR(wdt->reg_base)) {
ret = PTR_ERR(wdt->reg_base);