[PATCH v2 2/6] usb: host: ehci-msm: Use devm_ioremap_resource instead of devm_ioremap

[Vivek Gautam]

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 at samsung.com>
---
 drivers/usb/host/ehci-msm.c |    7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c
index f341651..982c09b 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;
 	}
 
-- 
1.7.10.4