macvlan: code refine to check data before using
authorZhang Shengju <zhangshengju@cmss.chinamobile.com>
Wed, 20 Sep 2017 00:12:23 +0000 (08:12 +0800)
committerDavid S. Miller <davem@davemloft.net>
Wed, 20 Sep 2017 20:46:45 +0000 (13:46 -0700)
commit07850a4f74ea0433fe26dccb1ab9556c738a6584
tree2b9074c71bf60184418d05ce69e89b1ae24d1b05
parentd4e1b299ec2853dd3d90b71ae86fa2626e60dc25
macvlan: code refine to check data before using

This patch checks data first at one place, return if it's null.

Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/macvlan.c