Commit 974a5a86 authored by Allan Stephens's avatar Allan Stephens Committed by Paul Gortmaker
Browse files

tipc: take lock while updating node network address 



The routine that changes the node's network address now takes TIPC's
network lock in write mode while the main address variable and associated
data structures are being changed; this is needed to ensure that the
link subsystem won't attempt to send a message off-node until the sending
port's message header template has been updated with the node's new
network address.

Signed-off-by: default avatarAllan Stephens <allan.stephens@windriver.com>
Signed-off-by: default avatarPaul Gortmaker <paul.gortmaker@windriver.com>
parent f0712e86

net/tipc/net.c

+2 −1
Original line number Diff line number Diff line
@@ -178,11 +178,12 @@ int tipc_net_start(u32 addr) 
	tipc_subscr_stop();

	tipc_cfg_stop();



	write_lock_bh(&tipc_net_lock);

	tipc_own_addr = addr;

	tipc_named_reinit();

	tipc_port_reinit();



	tipc_bclink_init();

	write_unlock_bh(&tipc_net_lock);



	tipc_k_signal((Handler)tipc_subscr_start, 0);

	tipc_k_signal((Handler)tipc_cfg_init, 0);