Merge branch 'r8152-net'

Hayes Wang says:

====================
r8152: patches for autosuspend

There are unexpected processes when enabling autosuspend.
These patches are used to fix them.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/usb/r8152.c

@@ -2891,6 +2891,9 @@ static int rtl8152_open(struct net_device *netdev)
 	if (res)
 		goto out;
 
+	/* set speed to 0 to avoid autoresume try to submit rx */
+	tp->speed = 0;
+
 	res = usb_autopm_get_interface(tp->intf);
 	if (res < 0) {
 		free_all_mem(tp);
@@ -2904,6 +2907,8 @@ static int rtl8152_open(struct net_device *netdev)
 		clear_bit(WORK_ENABLE, &tp->flags);
 		usb_kill_urb(tp->intr_urb);
 		cancel_delayed_work_sync(&tp->schedule);
+
+		/* disable the tx/rx, if the workqueue has enabled them. */
 		if (tp->speed & LINK_STATUS)
 			tp->rtl_ops.disable(tp);
 	}
@@ -2955,10 +2960,7 @@ static int rtl8152_close(struct net_device *netdev)
 		 * be disable when autoresume occurs, because the
 		 * netif_running() would be false.
 		 */
-		if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
 		rtl_runtime_suspend_enable(tp, false);
-			clear_bit(SELECTIVE_SUSPEND, &tp->flags);
-		}
 
 		tasklet_disable(&tp->tl);
 		tp->rtl_ops.down(tp);
@@ -3205,7 +3207,7 @@ static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
 		netif_device_detach(netdev);
 	}
 
-	if (netif_running(netdev)) {
+	if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
 		clear_bit(WORK_ENABLE, &tp->flags);
 		usb_kill_urb(tp->intr_urb);
 		tasklet_disable(&tp->tl);
@@ -3253,6 +3255,8 @@ static int rtl8152_resume(struct usb_interface *intf)
 			set_bit(WORK_ENABLE, &tp->flags);
 		}
 		usb_submit_urb(tp->intr_urb, GFP_KERNEL);
+	} else if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
+		clear_bit(SELECTIVE_SUSPEND, &tp->flags);
 	}
 
 	mutex_unlock(&tp->control);