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USB: ohci-jz4740: Use devm_*() functions

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

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jingoo Han 2013-12-11 16:24:17 +09:00 committed by Greg Kroah-Hartman
parent f1080e4d90
commit c81c3b0115
1 changed files with 11 additions and 32 deletions
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43
drivers/usb/host/ohci-jz4740.c
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@ -174,31 +174,23 @@ static int jz4740_ohci_probe(struct platform_device *pdev)
jz4740_ohci = hcd_to_jz4740_hcd(hcd);
res = request_mem_region(res->start, resource_size(res), hcd_name);
if (!res) {
dev_err(&pdev->dev, "Failed to request mem region.\n");
ret = -EBUSY;
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
hcd->regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(hcd->regs)) {
ret = PTR_ERR(hcd->regs);
goto err_free;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
hcd->regs = ioremap(res->start, resource_size(res));
if (!hcd->regs) {
dev_err(&pdev->dev, "Failed to ioremap registers.\n");
ret = -EBUSY;
goto err_release_mem;
}
jz4740_ohci->clk = clk_get(&pdev->dev, "uhc");
jz4740_ohci->clk = devm_clk_get(&pdev->dev, "uhc");
if (IS_ERR(jz4740_ohci->clk)) {
ret = PTR_ERR(jz4740_ohci->clk);
dev_err(&pdev->dev, "Failed to get clock: %d\n", ret);
goto err_iounmap;
goto err_free;
}
jz4740_ohci->vbus = regulator_get(&pdev->dev, "vbus");
jz4740_ohci->vbus = devm_regulator_get(&pdev->dev, "vbus");
if (IS_ERR(jz4740_ohci->vbus))
jz4740_ohci->vbus = NULL;
@ -222,17 +214,10 @@ static int jz4740_ohci_probe(struct platform_device *pdev)
return 0;
err_disable:
if (jz4740_ohci->vbus) {
if (jz4740_ohci->vbus)
regulator_disable(jz4740_ohci->vbus);
regulator_put(jz4740_ohci->vbus);
}
clk_disable(jz4740_ohci->clk);
clk_put(jz4740_ohci->clk);
err_iounmap:
iounmap(hcd->regs);
err_release_mem:
release_mem_region(res->start, resource_size(res));
err_free:
usb_put_hcd(hcd);
@ -246,16 +231,10 @@ static int jz4740_ohci_remove(struct platform_device *pdev)
usb_remove_hcd(hcd);
if (jz4740_ohci->vbus) {
if (jz4740_ohci->vbus)
regulator_disable(jz4740_ohci->vbus);
regulator_put(jz4740_ohci->vbus);
}
clk_disable(jz4740_ohci->clk);
clk_put(jz4740_ohci->clk);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);