USB: xhci: Return success for vendor-specific info codes.
An xHCI host controller manufacturer can choose to implement several vendor-specific informational completion codes. These are all to be treated like a successful transfer completion. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -1153,6 +1153,16 @@ static int handle_tx_event(struct xhci_hcd *xhci,
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status = -ENOSR;
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break;
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default:
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if (trb_comp_code >= 224 && trb_comp_code <= 255) {
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/* Vendor defined "informational" completion code,
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* treat as not-an-error.
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*/
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xhci_dbg(xhci, "Vendor defined info completion code %u\n",
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trb_comp_code);
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xhci_dbg(xhci, "Treating code as success.\n");
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status = 0;
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break;
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}
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xhci_warn(xhci, "ERROR Unknown event condition, HC probably busted\n");
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urb = NULL;
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goto cleanup;
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