1 files changed, 10 insertions, 6 deletions

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 17b6a62d206e..a95c73de5824 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -43,6 +43,7 @@
 #include <linux/mii.h>
 #include <linux/usb.h>
 #include <linux/usb/usbnet.h>
+#include <linux/slab.h>
 
 #define DRIVER_VERSION          "22-Aug-2005"
 
@@ -1068,12 +1069,15 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
          * NOTE:  strictly conforming cdc-ether devices should expect
          * the ZLP here, but ignore the one-byte packet.
          */
-        if (!(info->flags & FLAG_SEND_ZLP) && (length % dev->maxpacket) == 0) {
-                urb->transfer_buffer_length++;
-                if (skb_tailroom(skb)) {
-                        skb->data[skb->len] = 0;
-                        __skb_put(skb, 1);
-                }
+        if (length % dev->maxpacket == 0) {
+                if (!(info->flags & FLAG_SEND_ZLP)) {
+                        urb->transfer_buffer_length++;
+                        if (skb_tailroom(skb)) {
+                                skb->data[skb->len] = 0;
+                                __skb_put(skb, 1);
+                        }
+                } else
+                        urb->transfer_flags |= URB_ZERO_PACKET;
         }
 
         spin_lock_irqsave(&dev->txq.lock, flags);