pch_gbe: minor: report the actual error on MTU change

If we can't _up() after changing the MTU, report the actual error instead
of -ENOMEM. It can be really misleading cause pch_gbe is usually used in
scenarios where the memory amount is really small, and thus hiding the
real cause.

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 60eb890..0c1c65a 100644 (file)
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -2263,7 +2263,7 @@ static int pch_gbe_change_mtu(struct net_device *netdev, int new_mtu)
                if (err) {
                        adapter->rx_buffer_len = old_rx_buffer_len;
                        pch_gbe_up(adapter);
-                       return -ENOMEM;
+                       return err;
                } else {
                        netdev->mtu = new_mtu;
                        adapter->hw.mac.max_frame_size = max_frame;