[PATCH net-next] r8152: set RTL8152_UNPLUG when finding -ENODEV

[Hayes Wang]

Set RTL8152_UNPLUG when finding -ENODEV. This could accelerate
unloading the driver when the device is unplugged.

Signed-off-by: Hayes Wang <hayesw...@realtek.com>
---
 drivers/net/usb/r8152.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index e1810bc..f116335 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -690,6 +690,9 @@ static int generic_ocp_read(struct r8152 *tp, u16 index, 
u16 size,
                }
        }
 
+       if (ret == -ENODEV)
+               set_bit(RTL8152_UNPLUG, &tp->flags);
+
        return ret;
 }
 
@@ -757,6 +760,9 @@ static int generic_ocp_write(struct r8152 *tp, u16 index, 
u16 byteen,
        }
 
 error1:
+       if (ret == -ENODEV)
+               set_bit(RTL8152_UNPLUG, &tp->flags);
+
        return ret;
 }
 
@@ -1083,6 +1089,7 @@ static void read_bulk_callback(struct urb *urb)
 
        result = r8152_submit_rx(tp, agg, GFP_ATOMIC);
        if (result == -ENODEV) {
+               set_bit(RTL8152_UNPLUG, &tp->flags);
                netif_device_detach(tp->netdev);
        } else if (result) {
                spin_lock(&tp->rx_lock);
@@ -1187,11 +1194,13 @@ static void intr_callback(struct urb *urb)
 
 resubmit:
        res = usb_submit_urb(urb, GFP_ATOMIC);
-       if (res == -ENODEV)
+       if (res == -ENODEV) {
+               set_bit(RTL8152_UNPLUG, &tp->flags);
                netif_device_detach(tp->netdev);
-       else if (res)
+       } else if (res) {
                netif_err(tp, intr, tp->netdev,
                          "can't resubmit intr, status %d\n", res);
+       }
 }
 
 static inline void *rx_agg_align(void *data)
@@ -1755,6 +1764,7 @@ static void tx_bottom(struct r8152 *tp)
                        struct net_device *netdev = tp->netdev;
 
                        if (res == -ENODEV) {
+                               set_bit(RTL8152_UNPLUG, &tp->flags);
                                netif_device_detach(netdev);
                        } else {
                                struct net_device_stats *stats = &netdev->stats;
-- 
1.9.3

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