diff options
| -rw-r--r-- | net/core/dev.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index f1647d7dd14b..ddfef3b45bab 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -883,6 +883,9 @@ int dev_change_name(struct net_device *dev, char *newname) if (!dev_valid_name(newname)) return -EINVAL; + if (strncmp(newname, dev->name, IFNAMSIZ) == 0) + return 0; + memcpy(oldname, dev->name, IFNAMSIZ); if (strchr(newname, '%')) { |