From: David Brownell <david-b@pacbell.net>
Date: Sun, 22 Jan 2006 18:33:27 +0000 (-0800)
Subject: [PATCH] USB: minor gadget/rndis tweak
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=7802ac5c29d135345db1b06f9167075cd9f2d675;p=deliverable%2Flinux.git

[PATCH] USB: minor gadget/rndis tweak

Resove a minor FIXME:  don't change MTU while RNDIS link is active,
the other end won't expect such things...

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index afc84cfb61f9..04b9743c1c1f 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;