VIA_VELOCITY: Don't oops on MTU change.

mainline: bd7b3f34198071d8bec05180530c362f1800ba46

Simple mtu change when device is down.
Fix http://bugzilla.kernel.org/show_bug.cgi?id=9382.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Jeff Mahoney <jeffm@suse.com>
CC: Oliver Pinter <oliver.pntr@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c
index b670b97bcfde488a7de7a2e4bbe47985a0597a22..63a2f81b07b6511f1ae4681d5a7d47dd9f5a72a0 100644 (file)
--- a/drivers/net/via-velocity.c
+++ b/drivers/net/via-velocity.c
@@ -1798,6 +1798,11 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu)
                return -EINVAL;
        }
 
+       if (!netif_running(dev)) {
+               dev->mtu = new_mtu;
+               return 0;
+       }
+
        if (new_mtu != oldmtu) {
                spin_lock_irqsave(&vptr->lock, flags);