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| author | Vivek Gautam <gautam.vivek@samsung.com> | 2014-05-10 14:00:10 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-27 23:52:29 +0200 |
| commit | bae00c1ac3b3f32a0f7f1964054f6c3f33559607 (patch) | |
| tree | 66ddeaeb2b188abd59cfe48b6389dff29e7622cc | |
| parent | usb: host: ehci-tegra: Use devm_ioremap_resource instead of devm_ioremap (diff) | |
| download | linux-bae00c1ac3b3f32a0f7f1964054f6c3f33559607.tar.xz linux-bae00c1ac3b3f32a0f7f1964054f6c3f33559607.zip | |
usb: host: ohci-exynos: Use devm_ioremap_resource instead of devm_ioremap
Using devm_ioremap_resource() API should actually be preferred over
devm_ioremap(), since the former request the mem region first and then
gives back the ioremap'ed memory pointer.
devm_ioremap_resource() calls request_mem_region(), therby preventing
other drivers to make any overlapping call to the same region.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/host/ohci-exynos.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index 32f2ff1e93ce..060a6a414750 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -196,10 +196,9 @@ skip_phy: hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); - hcd->regs = devm_ioremap(&pdev->dev, res->start, hcd->rsrc_len); - if (!hcd->regs) { - dev_err(&pdev->dev, "Failed to remap I/O memory\n"); - err = -ENOMEM; + hcd->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(hcd->regs)) { + err = PTR_ERR(hcd->regs); goto fail_io; } |