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Commit 0d2bba96 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "xhci: Fix possible interrupt storm with suspend failure"

parents 0bcc3683 35725347

drivers/usb/host/xhci.c

+6 −0
Original line number Diff line number Diff line
@@ -985,6 +985,12 @@ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup) 
	if (xhci_handshake(&xhci->op_regs->status,

		      STS_HALT, STS_HALT, delay)) {

		xhci_warn(xhci, "WARN: xHC CMD_RUN timeout\n");

		/* Set the HW_ACCESSIBLE so that any pending interrupts are

		 * served.

		 */

		set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);

		set_bit(HCD_FLAG_HW_ACCESSIBLE, &xhci->shared_hcd->flags);

		xhci_hc_died(xhci);

		spin_unlock_irq(&xhci->lock);

		return -ETIMEDOUT;

	}