Use devm_ioremap_resource() in order to make the code simpler,
and remove redundant return value check of platform_get_resource()
because the value is checked by devm_ioremap_resource().
Signed-off-by: Jingoo Han <jg1.han@xxxxxxxxxxx>
---
drivers/watchdog/ep93xx_wdt.c | 13 +++----------
1 file changed, 3 insertions(+), 10 deletions(-)
diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c
index d1d07f2..5e4f3de 100644
--- a/drivers/watchdog/ep93xx_wdt.c
+++ b/drivers/watchdog/ep93xx_wdt.c
@@ -118,16 +118,9 @@ static int ep93xx_wdt_probe(struct platform_device *pdev)
int err;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENXIO;
-
- if (!devm_request_mem_region(&pdev->dev, res->start,
- resource_size(res), pdev->name))
- return -EBUSY;
-
- mmio_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
- if (!mmio_base)
- return -ENXIO;
+ mmio_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(mmio_base))
+ return PTR_ERR(mmio_base);
if (timeout < 1 || timeout > 3600) {
timeout = WDT_TIMEOUT;
--
1.7.10.4
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