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/crypto/sahara.c | 19 +++----------------
1 file changed, 3 insertions(+), 16 deletions(-)
diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c
index 785a9de..894468f 100644
--- a/drivers/crypto/sahara.c
+++ b/drivers/crypto/sahara.c
@@ -885,22 +885,9 @@ static int sahara_probe(struct platform_device *pdev)
/* Get the base address */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "failed to get memory region resource\n");
- return -ENODEV;
- }
-
- if (devm_request_mem_region(&pdev->dev, res->start,
- resource_size(res), SAHARA_NAME) == NULL) {
- dev_err(&pdev->dev, "failed to request memory region\n");
- return -ENOENT;
- }
- dev->regs_base = devm_ioremap(&pdev->dev, res->start,
- resource_size(res));
- if (!dev->regs_base) {
- dev_err(&pdev->dev, "failed to ioremap address region\n");
- return -ENOENT;
- }
+ dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(dev->regs_base))
+ return PTR_ERR(dev->regs_base);
/* Get the IRQ */
irq = platform_get_irq(pdev, 0);
--
1.7.10.4
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