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/ata/pata_samsung_cf.c | 18 +++---------------
1 file changed, 3 insertions(+), 15 deletions(-)
diff --git a/drivers/ata/pata_samsung_cf.c b/drivers/ata/pata_samsung_cf.c
index e04d70b..9a7798b 100644
--- a/drivers/ata/pata_samsung_cf.c
+++ b/drivers/ata/pata_samsung_cf.c
@@ -495,22 +495,10 @@ static int __init pata_s3c_probe(struct platform_device *pdev)
info->irq = platform_get_irq(pdev, 0);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res == NULL) {
- dev_err(dev, "failed to get mem resource\n");
- return -EINVAL;
- }
-
- if (!devm_request_mem_region(dev, res->start,
- resource_size(res), DRV_NAME)) {
- dev_err(dev, "error requesting register region\n");
- return -EBUSY;
- }
- info->ide_addr = devm_ioremap(dev, res->start, resource_size(res));
- if (!info->ide_addr) {
- dev_err(dev, "failed to map IO base address\n");
- return -ENOMEM;
- }
+ info->ide_addr = devm_ioremap_resource(dev, res);
+ if (IS_ERR(info->ide_addr))
+ return PTR_ERR(info->ide_addr);
info->clk = devm_clk_get(&pdev->dev, "cfcon");
if (IS_ERR(info->clk)) {
--
1.7.10.4
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