1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 8c408aa2f208..f9343bee1de3 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -221,7 +221,7 @@ skip:
                         goto bad_desc;
         }
 
-        if (header.usb_cdc_ether_desc) {
+        if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) {
                 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
                 /* because of Zaurus, we may be ignoring the host
                  * side link address we were given.