fjes: Fix unnecessary spinlock_irqsave

commit-bd5a256 introduces a deadlock bug in fjes_change_mtu().
This spin_lock_irqsave() is obviously unnecessary.

This patch eliminates unnecessary spin_lock_irqsave() in
fjes_change_mtu()

Signed-off-by: Taku Izumi <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/fjes/fjes_main.c

···
 	netdev->mtu = new_mtu;
 
 	if (running) {
-		spin_lock_irqsave(&hw->rx_status_lock, flags);
 		for (epidx = 0; epidx < hw->max_epid; epidx++) {
 			if (epidx == hw->my_epid)
 				continue;