r8152: fix the submission of the interrupt transfer

The submission of the interrupt transfer should be done after setting
the bit of WORK_ENABLE, otherwise the callback function would have
the opportunity to be returned directly.

Clear the bit of WORK_ENABLE before killing the interrupt transfer.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Preetham Chandru R <pchandru@nvidia.com>
(cherry picked from commit 3d55f44f563de2ab83209e8ead48d922b0d56a65)
Change-Id: Ida14be15f0dd14fe76e2895d6d6b39aa0283c126
Reviewed-on: http://git-master/r/370013
Tested-by: Aly Hirani <ahirani@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>

1 files changed, 8 insertions, 9 deletions

diff --git a/drivers/net/usb/r8152_shield.c b/drivers/net/usb/r8152_shield.c
index eab078b6e..a28120031 100644
--- a/drivers/net/usb/r8152_shield.c
+++ b/drivers/net/usb/r8152_shield.c
@@ -2271,22 +2271,21 @@ static int rtl8152_open(struct net_device *netdev)
         struct r8152 *tp = netdev_priv(netdev);
         int res = 0;
 
+        rtl8152_set_speed(tp, AUTONEG_ENABLE,
+                          tp->mii.supports_gmii ? SPEED_1000 : SPEED_100,
+                          DUPLEX_FULL);
+        tp->speed = 0;
+        netif_carrier_off(netdev);
+        netif_start_queue(netdev);
+        set_bit(WORK_ENABLE, &tp->flags);
         res = usb_submit_urb(tp->intr_urb, GFP_KERNEL);
         if (res) {
                 if (res == -ENODEV)
                         netif_device_detach(tp->netdev);
                 netif_warn(tp, ifup, netdev, "intr_urb submit failed: %d\n",
                            res);
-                return res;
         }
 
-        rtl8152_set_speed(tp, AUTONEG_ENABLE,
-                          tp->mii.supports_gmii ? SPEED_1000 : SPEED_100,
-                          DUPLEX_FULL);
-        tp->speed = 0;
-        netif_carrier_off(netdev);
-        netif_start_queue(netdev);
-        set_bit(WORK_ENABLE, &tp->flags);
 
         return res;
 }
@@ -2296,8 +2295,8 @@ static int rtl8152_close(struct net_device *netdev)
         struct r8152 *tp = netdev_priv(netdev);
         int res = 0;
 
-        usb_kill_urb(tp->intr_urb);
         clear_bit(WORK_ENABLE, &tp->flags);
+        usb_kill_urb(tp->intr_urb);
         cancel_delayed_work_sync(&tp->schedule);
         netif_stop_queue(netdev);
         tasklet_disable(&tp->tl);