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-rw-r--r--net/tipc/port.c25
1 files changed, 9 insertions, 16 deletions
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 0bd3e6192c43..4dfef9e798e3 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -841,14 +841,14 @@ static void port_dispatcher_sigh(void *dummy)
u32 peer_node = port_peernode(p_ptr);
tipc_port_unlock(p_ptr);
+ if (unlikely(!cb))
+ goto reject;
if (unlikely(!connected)) {
if (tipc_connect2port(dref, &orig))
goto reject;
} else if ((msg_origport(msg) != peer_port) ||
(msg_orignode(msg) != peer_node))
goto reject;
- if (unlikely(!cb))
- goto reject;
if (unlikely(++p_ptr->publ.conn_unacked >=
TIPC_FLOW_CONTROL_WIN))
tipc_acknowledge(dref,
@@ -862,9 +862,7 @@ static void port_dispatcher_sigh(void *dummy)
tipc_msg_event cb = up_ptr->msg_cb;
tipc_port_unlock(p_ptr);
- if (unlikely(connected))
- goto reject;
- if (unlikely(!cb))
+ if (unlikely(!cb || connected))
goto reject;
skb_pull(buf, msg_hdr_sz(msg));
cb(usr_handle, dref, &buf, msg_data(msg),
@@ -877,11 +875,7 @@ static void port_dispatcher_sigh(void *dummy)
tipc_named_msg_event cb = up_ptr->named_msg_cb;
tipc_port_unlock(p_ptr);
- if (unlikely(connected))
- goto reject;
- if (unlikely(!cb))
- goto reject;
- if (unlikely(!published))
+ if (unlikely(!cb || connected || !published))
goto reject;
dseq.type = msg_nametype(msg);
dseq.lower = msg_nameinst(msg);
@@ -908,11 +902,10 @@ err:
u32 peer_node = port_peernode(p_ptr);
tipc_port_unlock(p_ptr);
- if (!connected || !cb)
- break;
- if (msg_origport(msg) != peer_port)
+ if (!cb || !connected)
break;
- if (msg_orignode(msg) != peer_node)
+ if ((msg_origport(msg) != peer_port) ||
+ (msg_orignode(msg) != peer_node))
break;
tipc_disconnect(dref);
skb_pull(buf, msg_hdr_sz(msg));
@@ -924,7 +917,7 @@ err:
tipc_msg_err_event cb = up_ptr->err_cb;
tipc_port_unlock(p_ptr);
- if (connected || !cb)
+ if (!cb || connected)
break;
skb_pull(buf, msg_hdr_sz(msg));
cb(usr_handle, dref, &buf, msg_data(msg),
@@ -937,7 +930,7 @@ err:
up_ptr->named_err_cb;
tipc_port_unlock(p_ptr);
- if (connected || !cb)
+ if (!cb || connected)
break;
dseq.type = msg_nametype(msg);
dseq.lower = msg_nameinst(msg);