1 files changed, 17 insertions, 15 deletions

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 69c278b64084..486347776cb2 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -926,7 +926,7 @@ static void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status,
 	if ((xhci->port_status_u0 != all_ports_seen_u0) && port_in_u0) {
 		xhci->port_status_u0 |= 1 << wIndex;
 		if (xhci->port_status_u0 == all_ports_seen_u0) {
-			del_timer_sync(&xhci->comp_mode_recovery_timer);
+			timer_delete_sync(&xhci->comp_mode_recovery_timer);
 			xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
 				"All USB3 ports have entered U0 already!");
 			xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
@@ -1878,9 +1878,10 @@ int xhci_bus_resume(struct usb_hcd *hcd)
 	int max_ports, port_index;
 	int sret;
 	u32 next_state;
-	u32 temp, portsc;
+	u32 portsc;
 	struct xhci_hub *rhub;
 	struct xhci_port **ports;
+	bool disabled_irq = false;
 
 	rhub = xhci_get_rhub(hcd);
 	ports = rhub->ports;
@@ -1896,17 +1897,20 @@ int xhci_bus_resume(struct usb_hcd *hcd)
 		return -ESHUTDOWN;
 	}
 
-	/* delay the irqs */
-	temp = readl(&xhci->op_regs->command);
-	temp &= ~CMD_EIE;
-	writel(temp, &xhci->op_regs->command);
-
 	/* bus specific resume for ports we suspended at bus_suspend */
-	if (hcd->speed >= HCD_USB3)
+	if (hcd->speed >= HCD_USB3) {
 		next_state = XDEV_U0;
-	else
+	} else {
 		next_state = XDEV_RESUME;
-
+		if (bus_state->bus_suspended) {
+			/*
+			 * prevent port event interrupts from interfering
+			 * with usb2 port resume process
+			 */
+			xhci_disable_interrupter(xhci->interrupters[0]);
+			disabled_irq = true;
+		}
+	}
 	port_index = max_ports;
 	while (port_index--) {
 		portsc = readl(ports[port_index]->addr);
@@ -1974,11 +1978,9 @@ int xhci_bus_resume(struct usb_hcd *hcd)
 	(void) readl(&xhci->op_regs->command);
 
 	bus_state->next_statechange = jiffies + msecs_to_jiffies(5);
-	/* re-enable irqs */
-	temp = readl(&xhci->op_regs->command);
-	temp |= CMD_EIE;
-	writel(temp, &xhci->op_regs->command);
-	temp = readl(&xhci->op_regs->command);
+	/* re-enable interrupter */
+	if (disabled_irq)
+		xhci_enable_interrupter(xhci->interrupters[0]);
 
 	spin_unlock_irqrestore(&xhci->lock, flags);
 	return 0;