diff options
| author | Vivek Gautam <gautam.vivek@samsung.com> | 2014-05-10 14:00:06 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-27 23:52:29 +0200 |
| commit | 70843f623b58f9ab630e97400cb7d4f610b11c9b (patch) | |
| tree | 1986fb88c5b26aa55da8a29d7a3bb0cac0d070d9 /drivers/usb/host | |
| parent | usb: host: ehci-exynos: Use devm_ioremap_resource instead of devm_ioremap (diff) | |
| download | linux-70843f623b58f9ab630e97400cb7d4f610b11c9b.tar.xz linux-70843f623b58f9ab630e97400cb7d4f610b11c9b.zip | |
usb: host: ehci-msm: 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>
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/ehci-msm.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c index f341651d6f6c..982c09bebe0f 100644 --- a/drivers/usb/host/ehci-msm.c +++ b/drivers/usb/host/ehci-msm.c @@ -96,10 +96,9 @@ static int ehci_msm_probe(struct platform_device *pdev) hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); - hcd->regs = devm_ioremap(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - dev_err(&pdev->dev, "ioremap failed\n"); - ret = -ENOMEM; + hcd->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(hcd->regs)) { + ret = PTR_ERR(hcd->regs); goto put_hcd; } |