1 files changed, 27 insertions, 5 deletions

diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index b588c890ea70..8c19307e5040 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -117,7 +117,7 @@ static void ctrl_callback(struct urb *urb)
         case -ENOENT:
                 break;
         default:
-                if (netif_msg_drv(pegasus))
+                if (netif_msg_drv(pegasus) && printk_ratelimit())
                         dev_dbg(&pegasus->intf->dev, "%s, status %d\n",
                                 __FUNCTION__, urb->status);
         }
@@ -166,7 +166,7 @@ static int get_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
                 set_current_state(TASK_RUNNING);
                 if (ret == -ENODEV)
                         netif_device_detach(pegasus->net);
-                if (netif_msg_drv(pegasus))
+                if (netif_msg_drv(pegasus) && printk_ratelimit())
                         dev_err(&pegasus->intf->dev, "%s, status %d\n",
                                         __FUNCTION__, ret);
                 goto out;
@@ -275,7 +275,7 @@ static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data)
         if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
                 if (ret == -ENODEV)
                         netif_device_detach(pegasus->net);
-                if (netif_msg_drv(pegasus))
+                if (netif_msg_drv(pegasus) && printk_ratelimit())
                         dev_err(&pegasus->intf->dev, "%s, status %d\n",
                                         __FUNCTION__, ret);
                 goto out;
@@ -1209,8 +1209,7 @@ static void pegasus_set_multicast(struct net_device *net)
                 pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS;
                 if (netif_msg_link(pegasus))
                         pr_info("%s: Promiscuous mode enabled.\n", net->name);
-        } else if (net->mc_count ||
-                   (net->flags & IFF_ALLMULTI)) {
+        } else if (net->mc_count || (net->flags & IFF_ALLMULTI)) {
                 pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST;
                 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
                 if (netif_msg_link(pegasus))
@@ -1220,6 +1219,8 @@ static void pegasus_set_multicast(struct net_device *net)
                 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
         }
 
+        pegasus->ctrl_urb->status = 0;
+
         pegasus->flags |= ETH_REGS_CHANGE;
         ctrl_callback(pegasus->ctrl_urb);
 }
@@ -1285,6 +1286,21 @@ static void check_carrier(struct work_struct *work)
         }
 }
 
+static int pegasus_blacklisted(struct usb_device *udev)
+{
+        struct usb_device_descriptor *udd = &udev->descriptor;
+
+        /* Special quirk to keep the driver from handling the Belkin Bluetooth
+         * dongle which happens to have the same ID.
+         */
+        if ((udd->idVendor == VENDOR_BELKIN && udd->idProduct == 0x0121) &&
+            (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) &&
+            (udd->bDeviceProtocol == 1))
+                return 1;
+
+        return 0;
+}
+
 static int pegasus_probe(struct usb_interface *intf,
                          const struct usb_device_id *id)
 {
@@ -1296,6 +1312,12 @@ static int pegasus_probe(struct usb_interface *intf,
         DECLARE_MAC_BUF(mac);
 
         usb_get_dev(dev);
+
+        if (pegasus_blacklisted(dev)) {
+                res = -ENODEV;
+                goto out;
+        }
+
         net = alloc_etherdev(sizeof(struct pegasus));
         if (!net) {
                 dev_err(&intf->dev, "can't allocate %s\n", "device");