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drivers/perf: arm-ccn: Use devm_ioremap_resource() to map memory
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>
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@ -1485,17 +1485,9 @@ static int arm_ccn_probe(struct platform_device *pdev)
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platform_set_drvdata(pdev, ccn);
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!res)
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return -EINVAL;
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if (!devm_request_mem_region(ccn->dev, res->start,
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resource_size(res), pdev->name))
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return -EBUSY;
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ccn->base = devm_ioremap(ccn->dev, res->start,
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resource_size(res));
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if (!ccn->base)
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return -EFAULT;
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ccn->base = devm_ioremap_resource(ccn->dev, res);
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if (IS_ERR(ccn->base))
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return PTR_ERR(ccn->base);
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res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
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if (!res)
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