diff options
Diffstat (limited to 'system-linux.c')
| -rw-r--r-- | system-linux.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/system-linux.c b/system-linux.c index 0b594f6..9b654d1 100644 --- a/system-linux.c +++ b/system-linux.c @@ -1250,7 +1250,8 @@ static int system_vlan(struct device *dev, int id) .u.name_type = VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD, }; - ioctl(sock_ioctl, SIOCSIFVLAN, &ifr); + if (ioctl(sock_ioctl, SIOCSIFVLAN, &ifr) < 0) + return -1; if (id < 0) { ifr.cmd = DEL_VLAN_CMD; |