diff options
| author | Vivek Gautam <gautam.vivek@samsung.com> | 2014-05-10 17:30:07 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-27 14:52:29 -0700 |
| commit | 40a5ec988c3403106f5fb68ca3a328beff3c11bf (patch) | |
| tree | bc77d403c74bcf75ce8fbd5ea530f031cec7f1c9 /drivers/usb/host/ehci-mv.c | |
| parent | 70843f623b58f9ab630e97400cb7d4f610b11c9b (diff) | |
usb: host: ehci-mv: 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/ehci-mv.c')
| -rw-r--r-- | drivers/usb/host/ehci-mv.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index bd61612a7251..08147c35f836 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -176,11 +176,9 @@ static int mv_ehci_probe(struct platform_device *pdev) goto err_put_hcd; } - ehci_mv->phy_regs = devm_ioremap(&pdev->dev, r->start, - resource_size(r)); - if (!ehci_mv->phy_regs) { - dev_err(&pdev->dev, "failed to map phy I/O memory\n"); - retval = -EFAULT; + ehci_mv->phy_regs = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(ehci_mv->phy_regs)) { + retval = PTR_ERR(ehci_mv->phy_regs); goto err_put_hcd; } @@ -191,11 +189,9 @@ static int mv_ehci_probe(struct platform_device *pdev) goto err_put_hcd; } - ehci_mv->cap_regs = devm_ioremap(&pdev->dev, r->start, - resource_size(r)); - if (ehci_mv->cap_regs == NULL) { - dev_err(&pdev->dev, "failed to map I/O memory\n"); - retval = -EFAULT; + ehci_mv->cap_regs = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(ehci_mv->cap_regs)) { + retval = PTR_ERR(ehci_mv->cap_regs); goto err_put_hcd; } |