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USB: ehci-orion: Use devm_*() functions

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Use devm_*() functions to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jingoo Han 2013-12-11 16:16:33 +09:00 committed by Greg Kroah-Hartman
parent 63c9b9d3fe
commit 806f6e6b92
1 changed files with 12 additions and 31 deletions
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43
drivers/usb/host/ehci-orion.c
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@ -184,33 +184,23 @@ static int ehci_orion_drv_probe(struct platform_device *pdev)
if (err)
goto err1;
if (!request_mem_region(res->start, resource_size(res),
ehci_orion_hc_driver.description)) {
dev_dbg(&pdev->dev, "controller already in use\n");
err = -EBUSY;
regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(regs)) {
err = PTR_ERR(regs);
goto err1;
}
regs = ioremap(res->start, resource_size(res));
if (regs == NULL) {
dev_dbg(&pdev->dev, "error mapping memory\n");
err = -EFAULT;
goto err2;
}
/* Not all platforms can gate the clock, so it is not
an error if the clock does not exists. */
clk = clk_get(&pdev->dev, NULL);
if (!IS_ERR(clk)) {
clk = devm_clk_get(&pdev->dev, NULL);
if (!IS_ERR(clk))
clk_prepare_enable(clk);
clk_put(clk);
}
hcd = usb_create_hcd(&ehci_orion_hc_driver,
&pdev->dev, dev_name(&pdev->dev));
if (!hcd) {
err = -ENOMEM;
goto err3;
goto err2;
}
hcd->rsrc_start = res->start;
@ -250,21 +240,16 @@ static int ehci_orion_drv_probe(struct platform_device *pdev)
err = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (err)
goto err4;
goto err3;
device_wakeup_enable(hcd->self.controller);
return 0;
err4:
usb_put_hcd(hcd);
err3:
if (!IS_ERR(clk)) {
clk_disable_unprepare(clk);
clk_put(clk);
}
iounmap(regs);
usb_put_hcd(hcd);
err2:
release_mem_region(res->start, resource_size(res));
if (!IS_ERR(clk))
clk_disable_unprepare(clk);
err1:
dev_err(&pdev->dev, "init %s fail, %d\n",
dev_name(&pdev->dev), err);
@ -278,15 +263,11 @@ static int ehci_orion_drv_remove(struct platform_device *pdev)
struct clk *clk;
usb_remove_hcd(hcd);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
clk = clk_get(&pdev->dev, NULL);
if (!IS_ERR(clk)) {
clk = devm_clk_get(&pdev->dev, NULL);
if (!IS_ERR(clk))
clk_disable_unprepare(clk);
clk_put(clk);
}
return 0;
}