datapath: Always null-terminate network device name in create_dp().

[sliver-openvswitch.git] / datapath / datapath.c

diff --git a/datapath/datapath.c b/datapath/datapath.c
index be16044..e9590f7 100644 (file)
--- a/datapath/datapath.c
+++ b/datapath/datapath.c
@@ -246,7 +246,8 @@ static int create_dp(int dp_idx, const char __user *devnamep)
                goto err_free_dp;
 
        /* Set up our datapath device. */
-       strncpy(internal_dev_port.devname, devname, IFNAMSIZ - 1);
+       BUILD_BUG_ON(sizeof(internal_dev_port.devname) != sizeof(devname));
+       strcpy(internal_dev_port.devname, devname);
        internal_dev_port.flags = ODP_PORT_INTERNAL;
        err = new_dp_port(dp, &internal_dev_port, ODPP_LOCAL);
        if (err) {