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-rw-r--r--net/tap-linux.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/tap-linux.c b/net/tap-linux.c
index ff8cad0ea0..41d581b734 100644
--- a/net/tap-linux.c
+++ b/net/tap-linux.c
@@ -73,7 +73,11 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required
pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
if (ret != 0) {
- error_report("could not configure %s (%s): %m", PATH_NET_TUN, ifr.ifr_name);
+ if (ifname[0] != '\0') {
+ error_report("could not configure %s (%s): %m", PATH_NET_TUN, ifr.ifr_name);
+ } else {
+ error_report("could not configure %s: %m", PATH_NET_TUN);
+ }
close(fd);
return -1;
}