diff options
author | Stephen Hemminger <shemminger@linux-foundation.org> | 2007-10-26 06:53:42 -0400 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2007-10-26 06:53:42 -0400 |
commit | c8d90dca3211966ba5189e0f3d4bccd558d9ae08 (patch) | |
tree | 37df506f4905cf5a4dbd64c0680d8b98e9166c4b | |
parent | 8c56a347c1dfbe384b1ffb65d8828faa36dbaea4 (diff) |
[NET] dev_change_name: ignore changes to same name
Prevent error/backtrace from dev_rename() when changing
name of network device to the same name. This is a common
situation with udev and other scripts that bind addr to device.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
-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) | |||
883 | if (!dev_valid_name(newname)) | 883 | if (!dev_valid_name(newname)) |
884 | return -EINVAL; | 884 | return -EINVAL; |
885 | 885 | ||
886 | if (strncmp(newname, dev->name, IFNAMSIZ) == 0) | ||
887 | return 0; | ||
888 | |||
886 | memcpy(oldname, dev->name, IFNAMSIZ); | 889 | memcpy(oldname, dev->name, IFNAMSIZ); |
887 | 890 | ||
888 | if (strchr(newname, '%')) { | 891 | if (strchr(newname, '%')) { |