Re: [PATCH] xhci: Make handover code more robust

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Matthew Garrett wrote:
> +++ b/drivers/usb/host/pci-quirks.c
..
> @@ -830,9 +830,17 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev)
>  	 */
>  	ext_cap_offset = xhci_find_next_cap_offset(base, XHCI_HCC_PARAMS_OFFSET);
>  	do {
> +		if ((ext_cap_offset + sizeof(val)) > len) {
> +			/* We're reading garbage from the controller */
> +			dev_warn(&pdev->dev,
> +				 "xHCI controller failing to respond");
> +			return;
> +		}

Would it be useful to output the have and want values?


//Peter
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