tree c53e49a95c682a5d656fa7e95d847a8ae10aeb50
parent 4ae88c94d3b52dc47c6ad9352991219862f703f9
author Ying Xue <ying.xue@windriver.com> 1398048951 +0800
committer David S. Miller <davem@davemloft.net> 1398215873 -0400

tipc: use bc_lock to protect node map in bearer structure

The node map variable - 'nodes' in bearer structure is only used by
bclink. When bclink accesses it, bc_lock is held. But when change it,
for instance, in tipc_bearer_add_dest() or tipc_bearer_remove_dest()
the bc_lock is not taken at all. To avoid any inconsistent data, we
should always grab bc_lock while accessing node map variable.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Tested-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>