tree 04a7a3b6464b582a86d8193692a1588bf7049e53
parent 40cbfc37075a2ae2ed6c769cb0e9193819511f0a
author Stefan Hajnoczi <stefanha@gmail.com> 1358731042 +0000
committer David S. Miller <davem@davemloft.net> 1358795264 -0500

net: split eth_mac_addr for better error handling

When we set mac address, software mac address in system and hardware mac
address all need to be updated. Current eth_mac_addr() doesn't allow
callers to implement error handling nicely.

This patch split eth_mac_addr() to prepare part and real commit part,
then we can prepare first, and try to change hardware address, then do
the real commit if hardware address is set successfully.

Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>