From 7ef43ebaa538e0cc9063cbf84593a05091bcace2 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Mon, 12 May 2008 15:42:28 -0700 Subject: tipc: Fix race condition when creating socket or native port This patch eliminates the (very remote) chance of a crash resulting from a partially initialized socket or native port unexpectedly receiving a message. Now, during the creation of a socket or native port, the underlying generic port's lock is not released until all initialization required to handle incoming messages has been done. Signed-off-by: Allan Stephens Signed-off-by: David S. Miller --- net/tipc/port.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) (limited to 'net/tipc/port.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index 2f5806410c64..757de38fe6af 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -211,15 +211,18 @@ exit: } /** - * tipc_createport_raw - create a native TIPC port + * tipc_createport_raw - create a generic TIPC port * - * Returns local port reference + * Returns port reference, or 0 if unable to create it + * + * Note: The newly created port is returned in the locked state. */ u32 tipc_createport_raw(void *usr_handle, u32 (*dispatcher)(struct tipc_port *, struct sk_buff *), void (*wakeup)(struct tipc_port *), - const u32 importance) + const u32 importance, + struct tipc_port **tp_ptr) { struct port *p_ptr; struct tipc_msg *msg; @@ -237,7 +240,6 @@ u32 tipc_createport_raw(void *usr_handle, return 0; } - tipc_port_lock(ref); p_ptr->publ.usr_handle = usr_handle; p_ptr->publ.max_pkt = MAX_PKT_DEFAULT; p_ptr->publ.ref = ref; @@ -262,7 +264,7 @@ u32 tipc_createport_raw(void *usr_handle, INIT_LIST_HEAD(&p_ptr->port_list); list_add_tail(&p_ptr->port_list, &ports); spin_unlock_bh(&tipc_port_list_lock); - tipc_port_unlock(p_ptr); + *tp_ptr = &p_ptr->publ; return ref; } @@ -1053,6 +1055,7 @@ int tipc_createport(u32 user_ref, { struct user_port *up_ptr; struct port *p_ptr; + struct tipc_port *tp_ptr; u32 ref; up_ptr = kmalloc(sizeof(*up_ptr), GFP_ATOMIC); @@ -1060,12 +1063,13 @@ int tipc_createport(u32 user_ref, warn("Port creation failed, no memory\n"); return -ENOMEM; } - ref = tipc_createport_raw(NULL, port_dispatcher, port_wakeup, importance); - p_ptr = tipc_port_lock(ref); - if (!p_ptr) { + ref = tipc_createport_raw(NULL, port_dispatcher, port_wakeup, + importance, &tp_ptr); + if (ref == 0) { kfree(up_ptr); return -ENOMEM; } + p_ptr = (struct port *)tp_ptr; p_ptr->user_port = up_ptr; up_ptr->user_ref = user_ref; -- cgit From 6d4a6672c8263f98544d2b91690dc7074b144090 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Wed, 21 May 2008 14:54:12 -0700 Subject: tipc: Update "previous node" indicators when node address changes This patch ensures that the "previous node" field in any existing TIPC port message header templates is updated properly when a TIPC network address is assigned to the node. (Previously, only the "originating node" field was updated.) Signed-off-by: Allan Stephens Signed-off-by: David S. Miller --- net/tipc/port.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net/tipc/port.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index 757de38fe6af..2c64ad88e3cf 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -780,6 +780,7 @@ void tipc_port_reinit(void) msg = &p_ptr->publ.phdr; if (msg_orignode(msg) == tipc_own_addr) break; + msg_set_prevnode(msg, tipc_own_addr); msg_set_orignode(msg, tipc_own_addr); } spin_unlock_bh(&tipc_port_list_lock); -- cgit From 84b07c1638c36ae937d4930b467001a0d22904e5 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Wed, 4 Jun 2008 17:28:21 -0700 Subject: tipc: Fix bug in connection setup via native API This patch fixes a bug that prevented TIPC from receiving a connection setup request message on a native TIPC port. The revised connection setup logic ensures that validation of the source of a connection-based message is skipped if the port is not yet connected to a peer. Signed-off-by: Allan Stephens Signed-off-by: David S. Miller --- net/tipc/port.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'net/tipc/port.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index 2c64ad88e3cf..0bd3e6192c43 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -842,13 +842,10 @@ static void port_dispatcher_sigh(void *dummy) tipc_port_unlock(p_ptr); if (unlikely(!connected)) { - if (unlikely(published)) + if (tipc_connect2port(dref, &orig)) goto reject; - tipc_connect2port(dref,&orig); - } - if (unlikely(msg_origport(msg) != peer_port)) - goto reject; - if (unlikely(msg_orignode(msg) != peer_node)) + } else if ((msg_origport(msg) != peer_port) || + (msg_orignode(msg) != peer_node)) goto reject; if (unlikely(!cb)) goto reject; -- cgit From 5307e46957e76d71f02d2d736030ad92cdb3dd8c Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Wed, 4 Jun 2008 17:28:45 -0700 Subject: tipc: Standardize error checking on incoming messages via native API This patch re-orders & re-groups the error checks performed on messages being delivered to native API ports, in order to clarify the similarities and differences required for the various message types. Signed-off-by: Allan Stephens Signed-off-by: David S. Miller --- net/tipc/port.c | 25 +++++++++---------------- 1 file changed, 9 insertions(+), 16 deletions(-) (limited to 'net/tipc/port.c') 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); -- cgit From 757152175666681d54d370500e41a756cfedd4fc Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Wed, 4 Jun 2008 17:37:34 -0700 Subject: tipc: Optimize message initialization routine This patch eliminates the rarely-used "error code" argument when initializing a TIPC message header, since the default value of zero is the desired result in most cases; the few exceptional cases now set the error code explicitly. Signed-off-by: Allan Stephens Signed-off-by: David S. Miller --- net/tipc/port.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'net/tipc/port.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index 4dfef9e798e3..e3e9c121afbe 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -244,8 +244,7 @@ u32 tipc_createport_raw(void *usr_handle, p_ptr->publ.max_pkt = MAX_PKT_DEFAULT; p_ptr->publ.ref = ref; msg = &p_ptr->publ.phdr; - msg_init(msg, TIPC_LOW_IMPORTANCE, TIPC_NAMED_MSG, TIPC_OK, LONG_H_SIZE, - 0); + msg_init(msg, TIPC_LOW_IMPORTANCE, TIPC_NAMED_MSG, LONG_H_SIZE, 0); msg_set_orignode(msg, tipc_own_addr); msg_set_prevnode(msg, tipc_own_addr); msg_set_origport(msg, ref); @@ -404,7 +403,8 @@ static struct sk_buff *port_build_proto_msg(u32 destport, u32 destnode, buf = buf_acquire(LONG_H_SIZE); if (buf) { msg = buf_msg(buf); - msg_init(msg, usr, type, err, LONG_H_SIZE, destnode); + msg_init(msg, usr, type, LONG_H_SIZE, destnode); + msg_set_errcode(msg, err); msg_set_destport(msg, destport); msg_set_origport(msg, origport); msg_set_destnode(msg, destnode); @@ -448,7 +448,8 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err) return data_sz; } rmsg = buf_msg(rbuf); - msg_init(rmsg, imp, msg_type(msg), err, hdr_sz, msg_orignode(msg)); + msg_init(rmsg, imp, msg_type(msg), hdr_sz, msg_orignode(msg)); + msg_set_errcode(rmsg, err); msg_set_destport(rmsg, msg_origport(msg)); msg_set_prevnode(rmsg, tipc_own_addr); msg_set_origport(rmsg, msg_destport(msg)); -- cgit From 9bef54383d16568da19cfe46bdc52cdedb9bb8da Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Wed, 4 Jun 2008 17:47:55 -0700 Subject: tipc: Message header creation optimizations This patch eliminates several cases where message header fields were being set to the same value twice. Signed-off-by: Allan Stephens Signed-off-by: David S. Miller --- net/tipc/port.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'net/tipc/port.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index e3e9c121afbe..93014f9bc95f 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -244,11 +244,8 @@ u32 tipc_createport_raw(void *usr_handle, p_ptr->publ.max_pkt = MAX_PKT_DEFAULT; p_ptr->publ.ref = ref; msg = &p_ptr->publ.phdr; - msg_init(msg, TIPC_LOW_IMPORTANCE, TIPC_NAMED_MSG, LONG_H_SIZE, 0); - msg_set_orignode(msg, tipc_own_addr); - msg_set_prevnode(msg, tipc_own_addr); + msg_init(msg, importance, TIPC_NAMED_MSG, LONG_H_SIZE, 0); msg_set_origport(msg, ref); - msg_set_importance(msg,importance); p_ptr->last_in_seqno = 41; p_ptr->sent = 1; INIT_LIST_HEAD(&p_ptr->wait_list); @@ -407,7 +404,6 @@ static struct sk_buff *port_build_proto_msg(u32 destport, u32 destnode, msg_set_errcode(msg, err); msg_set_destport(msg, destport); msg_set_origport(msg, origport); - msg_set_destnode(msg, destnode); msg_set_orignode(msg, orignode); msg_set_transp_seqno(msg, seqno); msg_set_msgcnt(msg, ack); @@ -451,7 +447,6 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err) msg_init(rmsg, imp, msg_type(msg), hdr_sz, msg_orignode(msg)); msg_set_errcode(rmsg, err); msg_set_destport(rmsg, msg_origport(msg)); - msg_set_prevnode(rmsg, tipc_own_addr); msg_set_origport(rmsg, msg_destport(msg)); if (msg_short(msg)) msg_set_orignode(rmsg, tipc_own_addr); -- cgit From 99c145939bc1f65f9b946f2b9dd7bfc1f44783d6 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Wed, 4 Jun 2008 17:48:25 -0700 Subject: tipc: Fix bugs in rejection of message with short header This patch ensures that TIPC doesn't try to access non-existent message header fields when rejecting a message with a short header. Signed-off-by: Allan Stephens Signed-off-by: David S. Miller --- net/tipc/port.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'net/tipc/port.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index 93014f9bc95f..2e0cff408ff9 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -448,13 +448,15 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err) msg_set_errcode(rmsg, err); msg_set_destport(rmsg, msg_origport(msg)); msg_set_origport(rmsg, msg_destport(msg)); - if (msg_short(msg)) + if (msg_short(msg)) { msg_set_orignode(rmsg, tipc_own_addr); - else + /* leave name type & instance as zeroes */ + } else { msg_set_orignode(rmsg, msg_destnode(msg)); + msg_set_nametype(rmsg, msg_nametype(msg)); + msg_set_nameinst(rmsg, msg_nameinst(msg)); + } msg_set_size(rmsg, data_sz + hdr_sz); - msg_set_nametype(rmsg, msg_nametype(msg)); - msg_set_nameinst(rmsg, msg_nameinst(msg)); skb_copy_to_linear_data_offset(rbuf, hdr_sz, msg_data(msg), data_sz); /* send self-abort message when rejecting on a connected port */ -- cgit From 0ea522416b658dedfc9d565b331624a55a6260ad Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Mon, 14 Jul 2008 22:42:19 -0700 Subject: tipc: Remove unneeded parameter to tipc_createport_raw() This patch eliminates an unneeded parameter when creating a low-level TIPC port object. Instead of returning both the pointer to the port structure and the port's reference ID, it now returns only the pointer since the port structure contains the reference ID as one of its fields. Signed-off-by: Allan Stephens Signed-off-by: David S. Miller --- net/tipc/port.c | 28 ++++++++++------------------ 1 file changed, 10 insertions(+), 18 deletions(-) (limited to 'net/tipc/port.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index 2e0cff408ff9..ffba1e7f06d2 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -2,7 +2,7 @@ * net/tipc/port.c: TIPC port code * * Copyright (c) 1992-2007, Ericsson AB - * Copyright (c) 2004-2007, Wind River Systems + * Copyright (c) 2004-2008, Wind River Systems * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -213,16 +213,13 @@ exit: /** * tipc_createport_raw - create a generic TIPC port * - * Returns port reference, or 0 if unable to create it - * - * Note: The newly created port is returned in the locked state. + * Returns pointer to (locked) TIPC port, or NULL if unable to create it */ -u32 tipc_createport_raw(void *usr_handle, +struct tipc_port *tipc_createport_raw(void *usr_handle, u32 (*dispatcher)(struct tipc_port *, struct sk_buff *), void (*wakeup)(struct tipc_port *), - const u32 importance, - struct tipc_port **tp_ptr) + const u32 importance) { struct port *p_ptr; struct tipc_msg *msg; @@ -231,13 +228,13 @@ u32 tipc_createport_raw(void *usr_handle, p_ptr = kzalloc(sizeof(*p_ptr), GFP_ATOMIC); if (!p_ptr) { warn("Port creation failed, no memory\n"); - return 0; + return NULL; } ref = tipc_ref_acquire(p_ptr, &p_ptr->publ.lock); if (!ref) { warn("Port creation failed, reference table exhausted\n"); kfree(p_ptr); - return 0; + return NULL; } p_ptr->publ.usr_handle = usr_handle; @@ -260,8 +257,7 @@ u32 tipc_createport_raw(void *usr_handle, INIT_LIST_HEAD(&p_ptr->port_list); list_add_tail(&p_ptr->port_list, &ports); spin_unlock_bh(&tipc_port_list_lock); - *tp_ptr = &p_ptr->publ; - return ref; + return &(p_ptr->publ); } int tipc_deleteport(u32 ref) @@ -1044,21 +1040,18 @@ int tipc_createport(u32 user_ref, { struct user_port *up_ptr; struct port *p_ptr; - struct tipc_port *tp_ptr; - u32 ref; up_ptr = kmalloc(sizeof(*up_ptr), GFP_ATOMIC); if (!up_ptr) { warn("Port creation failed, no memory\n"); return -ENOMEM; } - ref = tipc_createport_raw(NULL, port_dispatcher, port_wakeup, - importance, &tp_ptr); - if (ref == 0) { + p_ptr = (struct port *)tipc_createport_raw(NULL, port_dispatcher, + port_wakeup, importance); + if (!p_ptr) { kfree(up_ptr); return -ENOMEM; } - p_ptr = (struct port *)tp_ptr; p_ptr->user_port = up_ptr; up_ptr->user_ref = user_ref; @@ -1074,7 +1067,6 @@ int tipc_createport(u32 user_ref, INIT_LIST_HEAD(&up_ptr->uport_list); tipc_reg_add_port(up_ptr); *portref = p_ptr->publ.ref; - dbg(" tipc_createport: %x with ref %u\n", p_ptr, p_ptr->publ.ref); tipc_port_unlock(p_ptr); return TIPC_OK; } -- cgit From 0e35fd5e5264bb46d1febbe9cd9aa08421c21a96 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Mon, 14 Jul 2008 22:44:01 -0700 Subject: tipc: Eliminate improper use of TIPC_OK error code This patch corrects many places where TIPC routines indicated successful completion by returning TIPC_OK instead of 0. (The TIPC_OK symbol has the value 0, but it should only be used in contexts that deal with the error code field of a TIPC message header.) Signed-off-by: Allan Stephens Signed-off-by: David S. Miller --- net/tipc/port.c | 34 +++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-) (limited to 'net/tipc/port.c') diff --git a/net/tipc/port.c b/net/tipc/port.c index ffba1e7f06d2..e70d27ea6578 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -291,7 +291,7 @@ int tipc_deleteport(u32 ref) kfree(p_ptr); dbg("Deleted port %u\n", ref); tipc_net_route_msg(buf); - return TIPC_OK; + return 0; } /** @@ -336,7 +336,7 @@ int tipc_portunreliable(u32 ref, unsigned int *isunreliable) return -EINVAL; *isunreliable = port_unreliable(p_ptr); tipc_port_unlock(p_ptr); - return TIPC_OK; + return 0; } int tipc_set_portunreliable(u32 ref, unsigned int isunreliable) @@ -348,7 +348,7 @@ int tipc_set_portunreliable(u32 ref, unsigned int isunreliable) return -EINVAL; msg_set_src_droppable(&p_ptr->publ.phdr, (isunreliable != 0)); tipc_port_unlock(p_ptr); - return TIPC_OK; + return 0; } static int port_unreturnable(struct port *p_ptr) @@ -365,7 +365,7 @@ int tipc_portunreturnable(u32 ref, unsigned int *isunrejectable) return -EINVAL; *isunrejectable = port_unreturnable(p_ptr); tipc_port_unlock(p_ptr); - return TIPC_OK; + return 0; } int tipc_set_portunreturnable(u32 ref, unsigned int isunrejectable) @@ -377,7 +377,7 @@ int tipc_set_portunreturnable(u32 ref, unsigned int isunrejectable) return -EINVAL; msg_set_dest_droppable(&p_ptr->publ.phdr, (isunrejectable != 0)); tipc_port_unlock(p_ptr); - return TIPC_OK; + return 0; } /* @@ -963,7 +963,7 @@ static u32 port_dispatcher(struct tipc_port *dummy, struct sk_buff *buf) tipc_k_signal((Handler)port_dispatcher_sigh, 0); } spin_unlock_bh(&queue_lock); - return TIPC_OK; + return 0; } /* @@ -1068,14 +1068,14 @@ int tipc_createport(u32 user_ref, tipc_reg_add_port(up_ptr); *portref = p_ptr->publ.ref; tipc_port_unlock(p_ptr); - return TIPC_OK; + return 0; } int tipc_ownidentity(u32 ref, struct tipc_portid *id) { id->ref = ref; id->node = tipc_own_addr; - return TIPC_OK; + return 0; } int tipc_portimportance(u32 ref, unsigned int *importance) @@ -1087,7 +1087,7 @@ int tipc_portimportance(u32 ref, unsigned int *importance) return -EINVAL; *importance = (unsigned int)msg_importance(&p_ptr->publ.phdr); tipc_port_unlock(p_ptr); - return TIPC_OK; + return 0; } int tipc_set_portimportance(u32 ref, unsigned int imp) @@ -1102,7 +1102,7 @@ int tipc_set_portimportance(u32 ref, unsigned int imp) return -EINVAL; msg_set_importance(&p_ptr->publ.phdr, (u32)imp); tipc_port_unlock(p_ptr); - return TIPC_OK; + return 0; } @@ -1137,7 +1137,7 @@ int tipc_publish(u32 ref, unsigned int scope, struct tipc_name_seq const *seq) list_add(&publ->pport_list, &p_ptr->publications); p_ptr->pub_count++; p_ptr->publ.published = 1; - res = TIPC_OK; + res = 0; } exit: tipc_port_unlock(p_ptr); @@ -1160,7 +1160,7 @@ int tipc_withdraw(u32 ref, unsigned int scope, struct tipc_name_seq const *seq) tipc_nametbl_withdraw(publ->type, publ->lower, publ->ref, publ->key); } - res = TIPC_OK; + res = 0; } else { list_for_each_entry_safe(publ, tpubl, &p_ptr->publications, pport_list) { @@ -1174,7 +1174,7 @@ int tipc_withdraw(u32 ref, unsigned int scope, struct tipc_name_seq const *seq) break; tipc_nametbl_withdraw(publ->type, publ->lower, publ->ref, publ->key); - res = TIPC_OK; + res = 0; break; } } @@ -1218,7 +1218,7 @@ int tipc_connect2port(u32 ref, struct tipc_portid const *peer) tipc_nodesub_subscribe(&p_ptr->subscription,peer->node, (void *)(unsigned long)ref, (net_ev_handler)port_handle_node_down); - res = TIPC_OK; + res = 0; exit: tipc_port_unlock(p_ptr); p_ptr->publ.max_pkt = tipc_link_get_max_pkt(peer->node, ref); @@ -1240,7 +1240,7 @@ int tipc_disconnect_port(struct tipc_port *tp_ptr) /* let timer expire on it's own to avoid deadlock! */ tipc_nodesub_unsubscribe( &((struct port *)tp_ptr)->subscription); - res = TIPC_OK; + res = 0; } else { res = -ENOTCONN; } @@ -1305,7 +1305,7 @@ int tipc_isconnected(u32 ref, int *isconnected) return -EINVAL; *isconnected = p_ptr->publ.connected; tipc_port_unlock(p_ptr); - return TIPC_OK; + return 0; } int tipc_peer(u32 ref, struct tipc_portid *peer) @@ -1319,7 +1319,7 @@ int tipc_peer(u32 ref, struct tipc_portid *peer) if (p_ptr->publ.connected) { peer->ref = port_peerport(p_ptr); peer->node = port_peernode(p_ptr); - res = TIPC_OK; + res = 0; } else res = -ENOTCONN; tipc_port_unlock(p_ptr); -- cgit