net: check retval of dev_addr_init()

Add missed checking of dev_addr_init return value in alloc_netdev_mq.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>

 net/core/dev.c |   15 ++++++++++++---
 1 files changed, 12 insertions(+), 3 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>