On 12/10/2013 11:20 PM, Jingoo Han wrote:
Use devm_ioremap_resource() to make cleanup paths simpler.
Signed-off-by: Jingoo Han <jg1....@samsung.com>
This patch doesn't apply cleanly against Linus' branch. However, I was
able to successfully test it after manually applying the changes.
After you rebase the patch, you can add ...
Acked-by: David Daney <david.da...@cavium.com>
---
drivers/usb/host/ehci-octeon.c | 23 +++++------------------
1 file changed, 5 insertions(+), 18 deletions(-)
diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c
index c4ad7ed..9051439 100644
--- a/drivers/usb/host/ehci-octeon.c
+++ b/drivers/usb/host/ehci-octeon.c
@@ -128,20 +128,12 @@ static int ehci_octeon_drv_probe(struct platform_device
*pdev)
hcd->rsrc_start = res_mem->start;
hcd->rsrc_len = resource_size(res_mem);
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
- OCTEON_EHCI_HCD_NAME)) {
- dev_err(&pdev->dev, "request_mem_region failed\n");
- ret = -EBUSY;
+ hcd->regs = devm_ioremap_resource(&pdev->dev, res_mem);
+ if (IS_ERR(hcd->regs)) {
+ ret = PTR_ERR(hcd->regs);
goto err1;
}
- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
- if (!hcd->regs) {
- dev_err(&pdev->dev, "ioremap failed\n");
- ret = -ENOMEM;
- goto err2;
- }
-
ehci_octeon_start();
ehci = hcd_to_ehci(hcd);
@@ -156,19 +148,16 @@ static int ehci_octeon_drv_probe(struct platform_device
*pdev)
ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (ret) {
dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret);
- goto err3;
+ goto err2;
}
device_wakeup_enable(hcd->self.controller);
platform_set_drvdata(pdev, hcd);
return 0;
-err3:
+err2:
ehci_octeon_stop();
- iounmap(hcd->regs);
-err2:
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err1:
usb_put_hcd(hcd);
return ret;
@@ -181,8 +170,6 @@ static int ehci_octeon_drv_remove(struct platform_device
*pdev)
usb_remove_hcd(hcd);
ehci_octeon_stop();
- iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
return 0;
--
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