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Commit df93b921 authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "xhci: fix 10 second timeout on removal of PCI hotpluggable xhci controllers"

parents 6a01206f f9cb8c74

drivers/usb/host/xhci-pci.c

+1 −0
Original line number Diff line number Diff line
@@ -281,6 +281,7 @@ static void xhci_pci_remove(struct pci_dev *dev) 
	struct xhci_hcd *xhci;



	xhci = hcd_to_xhci(pci_get_drvdata(dev));

	xhci->xhc_state |= XHCI_STATE_REMOVING;

	if (xhci->shared_hcd) {

		usb_remove_hcd(xhci->shared_hcd);

		usb_put_hcd(xhci->shared_hcd);

drivers/usb/host/xhci-ring.c

+3 −1
Original line number Diff line number Diff line
@@ -3940,7 +3940,9 @@ static int queue_command(struct xhci_hcd *xhci, struct xhci_command *cmd, 
{

	int reserved_trbs = xhci->cmd_ring_reserved_trbs;

	int ret;

	if (xhci->xhc_state) {



	if ((xhci->xhc_state & XHCI_STATE_DYING) ||

		(xhci->xhc_state & XHCI_STATE_HALTED)) {

		xhci_dbg(xhci, "xHCI dying or halted, can't queue_command\n");

		return -ESHUTDOWN;

	}

drivers/usb/host/xhci.c

+6 −3
Original line number Diff line number Diff line
@@ -156,7 +156,9 @@ static int xhci_start(struct xhci_hcd *xhci) 
				"waited %u microseconds.\n",

				XHCI_MAX_HALT_USEC);

	if (!ret)

		xhci->xhc_state &= ~XHCI_STATE_HALTED;

		/* clear state flags. Including dying, halted or removing */

		xhci->xhc_state = 0;



	return ret;

}
@@ -2795,7 +2797,8 @@ int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev) 
	if (ret <= 0)

		return ret;

	xhci = hcd_to_xhci(hcd);

	if (xhci->xhc_state & XHCI_STATE_DYING)

	if ((xhci->xhc_state & XHCI_STATE_DYING) ||

		(xhci->xhc_state & XHCI_STATE_REMOVING))

		return -ENODEV;



	xhci_dbg(xhci, "%s called for udev %p\n", __func__, udev);
@@ -3841,7 +3844,7 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev, 


	mutex_lock(&xhci->mutex);



	if (xhci->xhc_state)	/* dying or halted */

	if (xhci->xhc_state)	/* dying, removing or halted */

		goto out;



	if (!udev->slot_id) {

drivers/usb/host/xhci.h

+1 −0
Original line number Diff line number Diff line
@@ -1533,6 +1533,7 @@ struct xhci_hcd { 
 */

#define XHCI_STATE_DYING	(1 << 0)

#define XHCI_STATE_HALTED	(1 << 1)

#define XHCI_STATE_REMOVING	(1 << 2)

	/* Statistics */

	int			error_bitmask;

	unsigned int		quirks;