| Message ID | 1399715823-19839-7-git-send-email-gautam.vivek@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index 9cf80cb..aa64fb5 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -120,9 +120,8 @@ skip_phy: hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); - hcd->regs = devm_ioremap(&pdev->dev, res->start, hcd->rsrc_len); + hcd->regs = devm_ioremap_resource(&pdev->dev, res); if (!hcd->regs) { - dev_err(&pdev->dev, "Failed to remap I/O memory\n"); err = -ENOMEM; goto fail_io; }
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> --- drivers/usb/host/ohci-exynos.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)