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host: uhci-platform: fix NULL pointer dereference on resource 

Fix in accessing NULL if resource didn't get.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Varka Bhadram 2014-11-04 07:17:10 +05:30 committed by Greg Kroah-Hartman
parent 55dc68c012
commit 6827f7e311
1 changed files with 3 additions and 3 deletions
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6
drivers/usb/host/uhci-platform.c
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@ -86,14 +86,14 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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_rmr;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
uhci = hcd_to_uhci(hcd);
uhci->regs = hcd->regs;