diff options
| author |   Sudeep Holla <sudeep.holla@arm.com> | 2018-07-26 12:23:31 +0100 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2018-07-26 13:33:49 +0100 |
| commit | 809092dc3e606f3508b53baa624b27bfff8f0e7f (patch) | |
| tree | 3c274dc0b842bead539aceaee20a53edaaefe64b /drivers/perf | |
| parent | drivers/perf: hisi: update the sccl_id/ccl_id when MT is supported (diff) | |
| download | linux-dev-809092dc3e606f3508b53baa624b27bfff8f0e7f.tar.xz linux-dev-809092dc3e606f3508b53baa624b27bfff8f0e7f.zip | |
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>
Diffstat (limited to 'drivers/perf')
| -rw-r--r-- | drivers/perf/arm-ccn.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c index b416ee18e6bb..4b15c36f4631 100644 --- a/drivers/perf/arm-ccn.c +++ b/drivers/perf/arm-ccn.c @@ -1485,17 +1485,9 @@ static int arm_ccn_probe(struct platform_device *pdev) 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) |