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host: ehci-sead3: fix NULL pointer dereference on resource

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Fix on accessing NULL pointer dereference on get resource failed.

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 07:17:11 +05:30 • committed by Greg Kroah-Hartman
commit 239ab7a41a
1 changed files with 2 additions and 3 deletions
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5
drivers/usb/host/ehci-sead3.c
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@ -110,14 +110,13 @@ static int ehci_hcd_sead3_drv_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 err1;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
/* Root hub has integrated TT. */
hcd->has_tt = 1;