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| author | Stephen Hemminger <shemminger@linux-foundation.org> | 2007-10-26 03:53:42 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-10-26 03:53:42 -0700 |
| commit | c8d90dca3211966ba5189e0f3d4bccd558d9ae08 (patch) | |
| tree | 37df506f4905cf5a4dbd64c0680d8b98e9166c4b | |
| parent | 8c56a347c1dfbe384b1ffb65d8828faa36dbaea4 (diff) | |
| download | linux-3.10-c8d90dca3211966ba5189e0f3d4bccd558d9ae08.tar.gz linux-3.10-c8d90dca3211966ba5189e0f3d4bccd558d9ae08.tar.bz2 linux-3.10-c8d90dca3211966ba5189e0f3d4bccd558d9ae08.zip | |
[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 f1647d7dd14..ddfef3b45ba 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, '%')) { |