1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index f536aebc958e..23d7bbd199a5 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -622,14 +622,15 @@ int usb_match_one_id(struct usb_interface *interface,
         if (!usb_match_device(dev, id))
                 return 0;
 
-        /* The interface class, subclass, and protocol should never be
+        /* The interface class, subclass, protocol and number should never be
          * checked for a match if the device class is Vendor Specific,
          * unless the match record specifies the Vendor ID. */
         if (dev->descriptor.bDeviceClass == USB_CLASS_VENDOR_SPEC &&
                         !(id->match_flags & USB_DEVICE_ID_MATCH_VENDOR) &&
                         (id->match_flags & (USB_DEVICE_ID_MATCH_INT_CLASS |
                                 USB_DEVICE_ID_MATCH_INT_SUBCLASS |
-                                USB_DEVICE_ID_MATCH_INT_PROTOCOL)))
+                                USB_DEVICE_ID_MATCH_INT_PROTOCOL |
+                                USB_DEVICE_ID_MATCH_INT_NUMBER)))
                 return 0;
 
         if ((id->match_flags & USB_DEVICE_ID_MATCH_INT_CLASS) &&
@@ -644,6 +645,10 @@ int usb_match_one_id(struct usb_interface *interface,
             (id->bInterfaceProtocol != intf->desc.bInterfaceProtocol))
                 return 0;
 
+        if ((id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER) &&
+            (id->bInterfaceNumber != intf->desc.bInterfaceNumber))
+                return 0;
+
         return 1;
 }
 EXPORT_SYMBOL_GPL(usb_match_one_id);