diff options
| -rw-r--r-- | net/core/dev.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index e91390533999..a90737fe2472 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -967,6 +967,14 @@ int dev_set_alias(struct net_device *dev, const char *alias, size_t len) if (len >= IFALIASZ) return -EINVAL; + if (!len) { + if (dev->ifalias) { + kfree(dev->ifalias); + dev->ifalias = NULL; + } + return 0; + } + dev->ifalias = krealloc(dev->ifalias, len+1, GFP_KERNEL); if (!dev->ifalias) return -ENOMEM; |