diff options
| -rw-r--r-- | src/libsystemd/sd-device/sd-device.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/libsystemd/sd-device/sd-device.c b/src/libsystemd/sd-device/sd-device.c index dafda626f0..3d683fb280 100644 --- a/src/libsystemd/sd-device/sd-device.c +++ b/src/libsystemd/sd-device/sd-device.c @@ -345,9 +345,11 @@ _public_ int sd_device_new_from_ifname(sd_device **ret, const char *ifname) { assert_return(ret, -EINVAL); assert_return(ifname, -EINVAL); - r = device_new_from_main_ifname(ret, ifname); - if (r >= 0) - return r; + if (ifname_valid(ifname)) { + r = device_new_from_main_ifname(ret, ifname); + if (r >= 0) + return r; + } r = rtnl_resolve_ifname_full(NULL, RESOLVE_IFNAME_ALTERNATIVE | RESOLVE_IFNAME_NUMERIC, ifname, &main_name, NULL); if (r < 0) |