Instead of checking the return value of platform_get_resource(), we can
use devm_ioremap_resource() which has the NULL pointer check and the
memory region requesting. devm_ioremap_resource is designed to replace
calls to devm_request_mem_region followed by devm_ioremap, so let's use
the same.
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
platform_set_drvdata(pdev, ccn);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -EINVAL;
-
- if (!devm_request_mem_region(ccn->dev, res->start,
- resource_size(res), pdev->name))
- return -EBUSY;
-
- ccn->base = devm_ioremap(ccn->dev, res->start,
- resource_size(res));
- if (!ccn->base)
- return -EFAULT;
+ ccn->base = devm_ioremap_resource(ccn->dev, res);
+ if (IS_ERR(ccn->base))
+ return PTR_ERR(ccn->base);
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res)