USB: ehci-fsl: Use devm_ioremap_resource()
Use devm_ioremap_resource() to make cleanup paths simpler.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 7cd23b6..6f2c8d3 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -102,19 +102,11 @@
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
- driver->description)) {
- dev_dbg(&pdev->dev, "controller already in use\n");
- retval = -EBUSY;
+ hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(hcd->regs)) {
+ retval = PTR_ERR(hcd->regs);
goto err2;
}
- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
-
- if (hcd->regs == NULL) {
- dev_dbg(&pdev->dev, "error mapping memory\n");
- retval = -EFAULT;
- goto err3;
- }
pdata->regs = hcd->regs;
@@ -126,7 +118,7 @@
*/
if (pdata->init && pdata->init(pdev)) {
retval = -ENODEV;
- goto err4;
+ goto err2;
}
/* Enable USB controller, 83xx or 8536 */
@@ -137,7 +129,7 @@
retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (retval != 0)
- goto err4;
+ goto err2;
device_wakeup_enable(hcd->self.controller);
#ifdef CONFIG_USB_OTG
@@ -153,21 +145,17 @@
&ehci_to_hcd(ehci)->self);
if (retval) {
usb_put_phy(hcd->phy);
- goto err4;
+ goto err2;
}
} else {
dev_err(&pdev->dev, "can't find phy\n");
retval = -ENODEV;
- goto err4;
+ goto err2;
}
}
#endif
return retval;
- err4:
- iounmap(hcd->regs);
- err3:
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err2:
usb_put_hcd(hcd);
err1:
@@ -206,8 +194,6 @@
*/
if (pdata->exit)
pdata->exit(pdev);
- iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
}