1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index ea8b304f0e85..ee469274a3fe 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -55,6 +55,15 @@ static const struct usb_device_id wdm_ids[] = {
                 .bInterfaceSubClass = 1,
                 .bInterfaceProtocol = 9, /* NOTE: CDC ECM control interface! */
         },
+        {
+                 /* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */
+                .match_flags        = USB_DEVICE_ID_MATCH_VENDOR |
+                                      USB_DEVICE_ID_MATCH_INT_INFO,
+                .idVendor           = HUAWEI_VENDOR_ID,
+                .bInterfaceClass    = USB_CLASS_VENDOR_SPEC,
+                .bInterfaceSubClass = 1,
+                .bInterfaceProtocol = 57, /* NOTE: CDC ECM control interface! */
+        },
         { }
 };
 
@@ -491,6 +500,8 @@ retry:
                         goto retry;
                 }
                 if (!desc->reslength) { /* zero length read */
+                        dev_dbg(&desc->intf->dev, "%s: zero length - clearing WDM_READ\n", __func__);
+                        clear_bit(WDM_READ, &desc->flags);
                         spin_unlock_irq(&desc->iuspin);
                         goto retry;
                 }