[PATCH 0/8][BONDING]: Some BUGs and deadlocks fixes and a bit of concomitant cleanups.

[Pavel Emelyanov <xemul@openvz.org>]

Hi Jay, Dave.

While looking at the bonding driver I found four bugs visible with
the unaided eye. Here are the fixes, but I also cleaned up some
places, I just couldn't come by. If you consider those cleanups to
be for next merge window, just kick me and I'll resubmit this set
without them.

Found BUGs summary:
1. Bad error path in bond_create - the registered device should
   not be released with free_netdev;
2. Specifying the 'bond%d' name when creating a new device results
   in a new device with literally 'bond%d' name, not bond<digit>
   like for other drivers;
3. Lost unlock of rtnl and bonding_rwsem in bonding_store_bonds;
4. Deadlock between bonding_store_bonds and bond_destroy_sysfs
   on module unload.

The clean ups are
1. Minor alloc_netdev consolidation after fix #2
2. Redundant 3rd argument for bond_create;
3. Unneeded _safe list iterations in some places;
4. Unneeded list_empty checks in some places.

Details in patches.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>