linux-kernel - [PATCH v2 09/31] USB: ehci-omap: Use devm_ioremap

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Message-ID: <1359988520-11996-1-git-send-email-rogerq@ti.com>
Date:	Mon, 4 Feb 2013 16:35:20 +0200
From:	Roger Quadros <rogerq@...com>
To:	<stern@...land.harvard.edu>
CC:	<tony@...mide.com>, <linux@....linux.org.uk>,
	<sameo@...ux.intel.com>, <balbi@...com>,
	<gregkh@...uxfoundation.org>, <eballetbo@...il.com>,
	<javier@...hile0.org>, <sshtylyov@...sta.com>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH v2 09/31] USB: ehci-omap: Use devm_ioremap_resource()

Make use of devm_ioremap_resource() and correct comment.

CC: Alan Stern <stern@...land.harvard.edu>
Signed-off-by: Roger Quadros <rogerq@...com>
---
 drivers/usb/host/ehci-omap.c |   21 ++++++---------------
 1 files changed, 6 insertions(+), 15 deletions(-)

diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index 30fc482..6b088a4 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -216,23 +216,17 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
 
 	res =  platform_get_resource_byname(pdev,
 				IORESOURCE_MEM, "ehci");
-	if (!res) {
-		dev_err(dev, "UHH EHCI get resource failed\n");
-		return -ENODEV;
-	}
-
-	regs = ioremap(res->start, resource_size(res));
-	if (!regs) {
-		dev_err(dev, "UHH EHCI ioremap failed\n");
-		return -ENOMEM;
+	regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(regs)) {
+		dev_err(dev, "Resource request/ioremap failed\n");
+		return PTR_ERR(regs);
 	}
 
 	hcd = usb_create_hcd(&ehci_omap_hc_driver, dev,
 			dev_name(dev));
 	if (!hcd) {
-		dev_err(dev, "failed to create hcd with err %d\n", ret);
-		ret = -ENOMEM;
-		goto err_io;
+		dev_err(dev, "Failed to create HCD\n");
+		return -ENOMEM;
 	}
 
 	hcd->rsrc_start = res->start;
@@ -285,8 +279,6 @@ err_pm_runtime:
 	pm_runtime_put_sync(dev);
 	usb_put_hcd(hcd);
 
-err_io:
-	iounmap(regs);
 	return ret;
 }
 
@@ -306,7 +298,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev)
 
 	usb_remove_hcd(hcd);
 	disable_put_regulator(dev->platform_data);
-	iounmap(hcd->regs);
 	usb_put_hcd(hcd);
 
 	pm_runtime_put_sync(dev);
-- 
1.7.4.1

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