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-rw-r--r--drivers/usb/gadget/ether.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index afc84cfb61f..04b9743c1c1 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -1549,7 +1549,8 @@ static int eth_change_mtu (struct net_device *net, int new_mtu)
{
struct eth_dev *dev = netdev_priv(net);
- // FIXME if rndis, don't change while link's live
+ if (dev->rndis)
+ return -EBUSY;
if (new_mtu <= ETH_HLEN || new_mtu > ETH_FRAME_LEN)
return -ERANGE;