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drivers/usb/host/ehci-vt8500.c: use devm_ functions 

The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Julia Lawall 2012-07-30 16:43:40 +02:00 committed by Greg Kroah-Hartman
parent bc2ff98ffa
commit f1d4eb788a
1 changed files with 2 additions and 13 deletions
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15
drivers/usb/host/ehci-vt8500.c
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@ -106,17 +106,11 @@ static int vt8500_ehci_drv_probe(struct platform_device *pdev)
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
pr_debug("request_mem_region failed");
ret = -EBUSY;
goto err1;
}
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
if (!hcd->regs) {
pr_debug("ioremap failed");
ret = -ENOMEM;
goto err2;
goto err1;
}
ehci = hcd_to_ehci(hcd);
@ -129,9 +123,6 @@ static int vt8500_ehci_drv_probe(struct platform_device *pdev)
return ret;
}
iounmap(hcd->regs);
err2:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err1:
usb_put_hcd(hcd);
return ret;
@ -142,8 +133,6 @@ static int vt8500_ehci_drv_remove(struct platform_device *pdev)
struct usb_hcd *hcd = platform_get_drvdata(pdev);
usb_remove_hcd(hcd);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
platform_set_drvdata(pdev, NULL);