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[TIPC]: Enhanced & cleaned up system messages; fixed 2 obscure memory leaks. 

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Allan Stephens 2006-06-25 23:52:17 -07:00 committed by David S. Miller
parent f131072c3d
commit a10bd924a4
13 changed files with 148 additions and 125 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
net/tipc/bcast.c
View File

@ -785,7 +785,7 @@ int tipc_bclink_init(void)
bclink = kmalloc(sizeof(*bclink), GFP_ATOMIC);
if (!bcbearer || !bclink) {
nomem:
warn("Memory squeeze; Failed to create multicast link\n");
warn("Multicast link creation failed, no memory\n");
kfree(bcbearer);
bcbearer = NULL;
kfree(bclink);

2
net/tipc/bcast.h
View File

@ -180,7 +180,7 @@ static inline void tipc_port_list_add(struct port_list *pl_ptr, u32 port)
if (!item->next) {
item->next = kmalloc(sizeof(*item), GFP_ATOMIC);
if (!item->next) {
warn("Memory squeeze: multicast destination port list is incomplete\n");
warn("Incomplete multicast delivery, no memory\n");
return;
}
item->next->next = NULL;

70
net/tipc/bearer.c
View File

@ -112,39 +112,42 @@ int tipc_register_media(u32 media_type,
goto exit;
if (!media_name_valid(name)) {
warn("Media registration error: illegal name <%s>\n", name);
warn("Media <%s> rejected, illegal name\n", name);
goto exit;
}
if (!bcast_addr) {
warn("Media registration error: no broadcast address supplied\n");
warn("Media <%s> rejected, no broadcast address\n", name);
goto exit;
}
if ((bearer_priority < TIPC_MIN_LINK_PRI) &&
(bearer_priority > TIPC_MAX_LINK_PRI)) {
warn("Media registration error: priority %u\n", bearer_priority);
warn("Media <%s> rejected, illegal priority (%u)\n", name,
bearer_priority);
goto exit;
}
if ((link_tolerance < TIPC_MIN_LINK_TOL) ||
(link_tolerance > TIPC_MAX_LINK_TOL)) {
warn("Media registration error: tolerance %u\n", link_tolerance);
warn("Media <%s> rejected, illegal tolerance (%u)\n", name,
link_tolerance);
goto exit;
}
media_id = media_count++;
if (media_id >= MAX_MEDIA) {
warn("Attempt to register more than %u media\n", MAX_MEDIA);
warn("Media <%s> rejected, media limit reached (%u)\n", name,
MAX_MEDIA);
media_count--;
goto exit;
}
for (i = 0; i < media_id; i++) {
if (media_list[i].type_id == media_type) {
warn("Attempt to register second media with type %u\n",
warn("Media <%s> rejected, duplicate type (%u)\n", name,
media_type);
media_count--;
goto exit;
}
if (!strcmp(name, media_list[i].name)) {
warn("Attempt to re-register media name <%s>\n", name);
warn("Media <%s> rejected, duplicate name\n", name);
media_count--;
goto exit;
}
@ -283,6 +286,9 @@ static struct bearer *bearer_find(const char *name)
struct bearer *b_ptr;
u32 i;
if (tipc_mode != TIPC_NET_MODE)
return NULL;
for (i = 0, b_ptr = tipc_bearers; i < MAX_BEARERS; i++, b_ptr++) {
if (b_ptr->active && (!strcmp(b_ptr->publ.name, name)))
return b_ptr;
@ -475,26 +481,33 @@ int tipc_enable_bearer(const char *name, u32 bcast_scope, u32 priority)
u32 i;
int res = -EINVAL;
if (tipc_mode != TIPC_NET_MODE)
if (tipc_mode != TIPC_NET_MODE) {
warn("Bearer <%s> rejected, not supported in standalone mode\n",
name);
return -ENOPROTOOPT;
if (!bearer_name_validate(name, &b_name) ||
!tipc_addr_domain_valid(bcast_scope) ||
!in_scope(bcast_scope, tipc_own_addr))
}
if (!bearer_name_validate(name, &b_name)) {
warn("Bearer <%s> rejected, illegal name\n", name);
return -EINVAL;
}
if (!tipc_addr_domain_valid(bcast_scope) ||
!in_scope(bcast_scope, tipc_own_addr)) {
warn("Bearer <%s> rejected, illegal broadcast scope\n", name);
return -EINVAL;
}
if ((priority < TIPC_MIN_LINK_PRI ||
priority > TIPC_MAX_LINK_PRI) &&
(priority != TIPC_MEDIA_LINK_PRI))
(priority != TIPC_MEDIA_LINK_PRI)) {
warn("Bearer <%s> rejected, illegal priority\n", name);
return -EINVAL;
}
write_lock_bh(&tipc_net_lock);
if (!tipc_bearers)
goto failed;
m_ptr = media_find(b_name.media_name);
if (!m_ptr) {
warn("No media <%s>\n", b_name.media_name);
warn("Bearer <%s> rejected, media <%s> not registered\n", name,
b_name.media_name);
goto failed;
}
@ -510,23 +523,24 @@ restart:
continue;
}
if (!strcmp(name, tipc_bearers[i].publ.name)) {
warn("Bearer <%s> already enabled\n", name);
warn("Bearer <%s> rejected, already enabled\n", name);
goto failed;
}
if ((tipc_bearers[i].priority == priority) &&
(++with_this_prio > 2)) {
if (priority-- == 0) {
warn("Third bearer <%s> with priority %u, unable to lower to %u\n",
name, priority + 1, priority);
warn("Bearer <%s> rejected, duplicate priority\n",
name);
goto failed;
}
warn("Third bearer <%s> with priority %u, lowering to %u\n",
warn("Bearer <%s> priority adjustment required %u->%u\n",
name, priority + 1, priority);
goto restart;
}
}
if (bearer_id >= MAX_BEARERS) {
warn("Attempt to enable more than %d bearers\n", MAX_BEARERS);
warn("Bearer <%s> rejected, bearer limit reached (%u)\n",
name, MAX_BEARERS);
goto failed;
}
@ -536,7 +550,7 @@ restart:
strcpy(b_ptr->publ.name, name);
res = m_ptr->enable_bearer(&b_ptr->publ);
if (res) {
warn("Failed to enable bearer <%s>\n", name);
warn("Bearer <%s> rejected, enable failure (%d)\n", name, -res);
goto failed;
}
@ -573,9 +587,6 @@ int tipc_block_bearer(const char *name)
struct link *l_ptr;
struct link *temp_l_ptr;
if (tipc_mode != TIPC_NET_MODE)
return -ENOPROTOOPT;
read_lock_bh(&tipc_net_lock);
b_ptr = bearer_find(name);
if (!b_ptr) {
@ -584,6 +595,7 @@ int tipc_block_bearer(const char *name)
return -EINVAL;
}
info("Blocking bearer <%s>\n", name);
spin_lock_bh(&b_ptr->publ.lock);
b_ptr->publ.blocked = 1;
list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) {
@ -595,7 +607,6 @@ int tipc_block_bearer(const char *name)
}
spin_unlock_bh(&b_ptr->publ.lock);
read_unlock_bh(&tipc_net_lock);
info("Blocked bearer <%s>\n", name);
return TIPC_OK;
}
@ -611,15 +622,13 @@ static int bearer_disable(const char *name)
struct link *l_ptr;
struct link *temp_l_ptr;
if (tipc_mode != TIPC_NET_MODE)
return -ENOPROTOOPT;
b_ptr = bearer_find(name);
if (!b_ptr) {
warn("Attempt to disable unknown bearer <%s>\n", name);
return -EINVAL;
}
info("Disabling bearer <%s>\n", name);
tipc_disc_stop_link_req(b_ptr->link_req);
spin_lock_bh(&b_ptr->publ.lock);
b_ptr->link_req = NULL;
@ -635,7 +644,6 @@ static int bearer_disable(const char *name)
tipc_link_delete(l_ptr);
}
spin_unlock_bh(&b_ptr->publ.lock);
info("Disabled bearer <%s>\n", name);
memset(b_ptr, 0, sizeof(struct bearer));
return TIPC_OK;
}

22
net/tipc/cluster.c
View File

@ -60,8 +60,10 @@ struct cluster *tipc_cltr_create(u32 addr)
int alloc;
c_ptr = (struct cluster *)kmalloc(sizeof(*c_ptr), GFP_ATOMIC);
if (c_ptr == NULL)
if (c_ptr == NULL) {
warn("Cluster creation failure, no memory\n");
return NULL;
}
memset(c_ptr, 0, sizeof(*c_ptr));
c_ptr->addr = tipc_addr(tipc_zone(addr), tipc_cluster(addr), 0);
@ -70,30 +72,32 @@ struct cluster *tipc_cltr_create(u32 addr)
else
max_nodes = tipc_max_nodes + 1;
alloc = sizeof(void *) * (max_nodes + 1);
c_ptr->nodes = (struct node **)kmalloc(alloc, GFP_ATOMIC);
if (c_ptr->nodes == NULL) {
warn("Cluster creation failure, no memory for node area\n");
kfree(c_ptr);
return NULL;
}
memset(c_ptr->nodes, 0, alloc);
memset(c_ptr->nodes, 0, alloc);
if (in_own_cluster(addr))
tipc_local_nodes = c_ptr->nodes;
c_ptr->highest_slave = LOWEST_SLAVE - 1;
c_ptr->highest_node = 0;
z_ptr = tipc_zone_find(tipc_zone(addr));
if (z_ptr == NULL) {
if (!z_ptr) {
z_ptr = tipc_zone_create(addr);
}
if (z_ptr != NULL) {
tipc_zone_attach_cluster(z_ptr, c_ptr);
c_ptr->owner = z_ptr;
}
else {
if (!z_ptr) {
kfree(c_ptr->nodes);
kfree(c_ptr);
c_ptr = NULL;
return NULL;
}
tipc_zone_attach_cluster(z_ptr, c_ptr);
c_ptr->owner = z_ptr;
return c_ptr;
}

2
net/tipc/config.c
View File

@ -642,7 +642,7 @@ static void cfg_named_msg_event(void *userdata,
if ((size < sizeof(*req_hdr)) ||
(size != TCM_ALIGN(ntohl(req_hdr->tcm_len))) ||
(ntohs(req_hdr->tcm_flags) != TCM_F_REQUEST)) {
warn("discarded invalid configuration message\n");
warn("Invalid configuration message discarded\n");
return;
}

7
net/tipc/discover.c
View File

@ -176,7 +176,6 @@ void tipc_disc_recv_msg(struct sk_buff *buf)
n_ptr = tipc_node_create(orig);
}
if (n_ptr == NULL) {
warn("Memory squeeze; Failed to create node\n");
return;
}
spin_lock_bh(&n_ptr->lock);
@ -191,10 +190,8 @@ void tipc_disc_recv_msg(struct sk_buff *buf)
}
addr = &link->media_addr;
if (memcmp(addr, &media_addr, sizeof(*addr))) {
char addr_string[16];
warn("New bearer address for %s\n",
addr_string_fill(addr_string, orig));
warn("Resetting link <%s>, peer interface address changed\n",
link->name);
memcpy(addr, &media_addr, sizeof(*addr));
tipc_link_reset(link);
}

39
net/tipc/link.c
View File

@ -419,7 +419,7 @@ struct link *tipc_link_create(struct bearer *b_ptr, const u32 peer,
l_ptr = (struct link *)kmalloc(sizeof(*l_ptr), GFP_ATOMIC);
if (!l_ptr) {
warn("Memory squeeze; Failed to create link\n");
warn("Link creation failed, no memory\n");
return NULL;
}
memset(l_ptr, 0, sizeof(*l_ptr));
@ -469,7 +469,7 @@ struct link *tipc_link_create(struct bearer *b_ptr, const u32 peer,
if (!pb) {
kfree(l_ptr);
warn("Memory squeeze; Failed to create link\n");
warn("Link creation failed, no memory for print buffer\n");
return NULL;
}
tipc_printbuf_init(&l_ptr->print_buf, pb, LINK_LOG_BUF_SIZE);
@ -819,6 +819,8 @@ static void link_state_event(struct link *l_ptr, unsigned event)
break;
case RESET_MSG:
dbg_link("RES -> RR\n");
info("Resetting link <%s>, requested by peer\n",
l_ptr->name);
tipc_link_reset(l_ptr);
l_ptr->state = RESET_RESET;
l_ptr->fsm_msg_cnt = 0;
@ -843,6 +845,8 @@ static void link_state_event(struct link *l_ptr, unsigned event)
break;
case RESET_MSG:
dbg_link("RES -> RR\n");
info("Resetting link <%s>, requested by peer "
"while probing\n", l_ptr->name);
tipc_link_reset(l_ptr);
l_ptr->state = RESET_RESET;
l_ptr->fsm_msg_cnt = 0;
@ -874,6 +878,8 @@ static void link_state_event(struct link *l_ptr, unsigned event)
} else { /* Link has failed */
dbg_link("-> RU (%u probes unanswered)\n",
l_ptr->fsm_msg_cnt);
warn("Resetting link <%s>, peer not responding\n",
l_ptr->name);
tipc_link_reset(l_ptr);
l_ptr->state = RESET_UNKNOWN;
l_ptr->fsm_msg_cnt = 0;
@ -1049,7 +1055,7 @@ int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf)
msg_dbg(msg, "TIPC: Congestion, throwing away\n");
buf_discard(buf);
if (imp > CONN_MANAGER) {
warn("Resetting <%s>, send queue full", l_ptr->name);
warn("Resetting link <%s>, send queue full", l_ptr->name);
tipc_link_reset(l_ptr);
}
return dsz;
@ -2228,7 +2234,7 @@ static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf)
if (msg_linkprio(msg) &&
(msg_linkprio(msg) != l_ptr->priority)) {
warn("Changing prio <%s>: %u->%u\n",
warn("Resetting link <%s>, priority change %u->%u\n",
l_ptr->name, l_ptr->priority, msg_linkprio(msg));
l_ptr->priority = msg_linkprio(msg);
tipc_link_reset(l_ptr); /* Enforce change to take effect */
@ -2348,7 +2354,8 @@ void tipc_link_changeover(struct link *l_ptr)
msg_dbg(&tunnel_hdr, "EMPTY>SEND>");
tipc_link_send_buf(tunnel, buf);
} else {
warn("Memory squeeze; link changeover failed\n");
warn("Link changeover error, "
"unable to send changeover msg\n");
}
return;
}
@ -2398,7 +2405,8 @@ void tipc_link_send_duplicate(struct link *l_ptr, struct link *tunnel)
msg_set_size(&tunnel_hdr, length + INT_H_SIZE);
outbuf = buf_acquire(length + INT_H_SIZE);
if (outbuf == NULL) {
warn("Memory squeeze; buffer duplication failed\n");
warn("Link changeover error, "
"unable to send duplicate msg\n");
return;
}
memcpy(outbuf->data, (unchar *)&tunnel_hdr, INT_H_SIZE);
@ -2473,7 +2481,7 @@ static int link_recv_changeover_msg(struct link **l_ptr,
}
*buf = buf_extract(tunnel_buf,INT_H_SIZE);
if (*buf == NULL) {
warn("Memory squeeze; failed to extract msg\n");
warn("Link changeover error, duplicate msg dropped\n");
goto exit;
}
msg_dbg(tunnel_msg, "TNL<REC<");
@ -2485,6 +2493,8 @@ static int link_recv_changeover_msg(struct link **l_ptr,
if (tipc_link_is_up(dest_link)) {
msg_dbg(tunnel_msg, "UP/FIRST/<REC<");
info("Resetting link <%s>, changeover initiated by peer\n",
dest_link->name);
tipc_link_reset(dest_link);
dest_link->exp_msg_count = msg_count;
if (!msg_count)
@ -2514,7 +2524,7 @@ static int link_recv_changeover_msg(struct link **l_ptr,
buf_discard(tunnel_buf);
return 1;
} else {
warn("Memory squeeze; dropped incoming msg\n");
warn("Link changeover error, original msg dropped\n");
}
}
exit:
@ -2536,13 +2546,8 @@ void tipc_link_recv_bundle(struct sk_buff *buf)
while (msgcount--) {
obuf = buf_extract(buf, pos);
if (obuf == NULL) {
char addr_string[16];
warn("Buffer allocation failure;\n");
warn(" incoming message(s) from %s lost\n",
addr_string_fill(addr_string,
msg_orignode(buf_msg(buf))));
return;
warn("Link unable to unbundle message(s)\n");
break;
};
pos += align(msg_size(buf_msg(obuf)));
msg_dbg(buf_msg(obuf), " /");
@ -2600,7 +2605,7 @@ int tipc_link_send_long_buf(struct link *l_ptr, struct sk_buff *buf)
}
fragm = buf_acquire(fragm_sz + INT_H_SIZE);
if (fragm == NULL) {
warn("Memory squeeze; failed to fragment msg\n");
warn("Link unable to fragment message\n");
dsz = -ENOMEM;
goto exit;
}
@ -2715,7 +2720,7 @@ int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb,
set_fragm_size(pbuf,fragm_sz);
set_expected_frags(pbuf,exp_fragm_cnt - 1);
} else {
warn("Memory squeeze; got no defragmenting buffer\n");
warn("Link unable to reassemble fragmented message\n");
}
buf_discard(fbuf);
return 0;

10
net/tipc/name_distr.c
View File

@ -127,7 +127,7 @@ void tipc_named_publish(struct publication *publ)
buf = named_prepare_buf(PUBLICATION, ITEM_SIZE, 0);
if (!buf) {
warn("Memory squeeze; failed to distribute publication\n");
warn("Publication distribution failure\n");
return;
}
@ -151,7 +151,7 @@ void tipc_named_withdraw(struct publication *publ)
buf = named_prepare_buf(WITHDRAWAL, ITEM_SIZE, 0);
if (!buf) {
warn("Memory squeeze; failed to distribute withdrawal\n");
warn("Withdrawl distribution failure\n");
return;
}
@ -184,8 +184,8 @@ void tipc_named_node_up(unsigned long node)
left = (rest <= max_item_buf) ? rest : max_item_buf;
rest -= left;
buf = named_prepare_buf(PUBLICATION, left, node);
if (buf == NULL) {
warn("Memory Squeeze; could not send publication\n");
if (!buf) {
warn("Bulk publication distribution failure\n");
goto exit;
}
item = (struct distr_item *)msg_data(buf_msg(buf));
@ -291,7 +291,7 @@ void tipc_named_recv(struct sk_buff *buf)
ntohl(item->ref), ntohl(item->key));
}
} else {
warn("tipc_named_recv: unknown msg\n");
warn("Unrecognized name table message received\n");
}
item++;
}

6
net/tipc/name_table.c
View File

@ -120,7 +120,7 @@ static struct publication *publ_create(u32 type, u32 lower, u32 upper,
struct publication *publ =
(struct publication *)kmalloc(sizeof(*publ), GFP_ATOMIC);
if (publ == NULL) {
warn("Memory squeeze; failed to create publication\n");
warn("Publication creation failure, no memory\n");
return NULL;
}
@ -165,7 +165,7 @@ static struct name_seq *tipc_nameseq_create(u32 type, struct hlist_head *seq_hea
struct sub_seq *sseq = tipc_subseq_alloc(1);
if (!nseq || !sseq) {
warn("Memory squeeze; failed to create name sequence\n");
warn("Name sequence creation failed, no memory\n");
kfree(nseq);
kfree(sseq);
return NULL;
@ -759,7 +759,7 @@ struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
struct publication *publ;
if (table.local_publ_count >= tipc_max_publications) {
warn("Failed publish: max %u local publication\n",
warn("Publication failed, local publication limit reached (%u)\n",
tipc_max_publications);
return NULL;
}

66
net/tipc/node.c
View File

@ -61,34 +61,37 @@ struct node *tipc_node_create(u32 addr)
struct node **curr_node;
n_ptr = kmalloc(sizeof(*n_ptr),GFP_ATOMIC);
if (n_ptr != NULL) {
memset(n_ptr, 0, sizeof(*n_ptr));
n_ptr->addr = addr;
n_ptr->lock = SPIN_LOCK_UNLOCKED;
INIT_LIST_HEAD(&n_ptr->nsub);
c_ptr = tipc_cltr_find(addr);
if (c_ptr == NULL)
c_ptr = tipc_cltr_create(addr);
if (c_ptr != NULL) {
n_ptr->owner = c_ptr;
tipc_cltr_attach_node(c_ptr, n_ptr);
n_ptr->last_router = -1;
if (!n_ptr) {
warn("Node creation failed, no memory\n");
return NULL;
}
/* Insert node into ordered list */
for (curr_node = &tipc_nodes; *curr_node;
curr_node = &(*curr_node)->next) {
if (addr < (*curr_node)->addr) {
n_ptr->next = *curr_node;
break;
}
}
(*curr_node) = n_ptr;
} else {
kfree(n_ptr);
n_ptr = NULL;
}
}
c_ptr = tipc_cltr_find(addr);
if (!c_ptr) {
c_ptr = tipc_cltr_create(addr);
}
if (!c_ptr) {
kfree(n_ptr);
return NULL;
}
memset(n_ptr, 0, sizeof(*n_ptr));
n_ptr->addr = addr;
n_ptr->lock = SPIN_LOCK_UNLOCKED;
INIT_LIST_HEAD(&n_ptr->nsub);
n_ptr->owner = c_ptr;
tipc_cltr_attach_node(c_ptr, n_ptr);
n_ptr->last_router = -1;
/* Insert node into ordered list */
for (curr_node = &tipc_nodes; *curr_node;
curr_node = &(*curr_node)->next) {
if (addr < (*curr_node)->addr) {
n_ptr->next = *curr_node;
break;
}
}
(*curr_node) = n_ptr;
return n_ptr;
}
@ -132,7 +135,7 @@ void tipc_node_link_up(struct node *n_ptr, struct link *l_ptr)
return;
}
if (l_ptr->priority < active[0]->priority) {
info("Link is standby\n");
info("New link <%s> becomes standby\n", l_ptr->name);
return;
}
tipc_link_send_duplicate(active[0], l_ptr);
@ -140,8 +143,9 @@ void tipc_node_link_up(struct node *n_ptr, struct link *l_ptr)
active[0] = l_ptr;
return;
}
info("Link <%s> on network plane %c becomes standby\n",
active[0]->name, active[0]->b_ptr->net_plane);
info("Old link <%s> becomes standby\n", active[0]->name);
if (active[1] != active[0])
info("Old link <%s> becomes standby\n", active[1]->name);
active[0] = active[1] = l_ptr;
}
@ -248,7 +252,7 @@ struct node *tipc_node_attach_link(struct link *l_ptr)
n_ptr->link_cnt++;
return n_ptr;
}
err("Attempt to establish second link on <%s> to <%s> \n",
err("Attempt to establish second link on <%s> to %s \n",
l_ptr->b_ptr->publ.name,
addr_string_fill(addr_string, l_ptr->addr));
}

10
net/tipc/port.c
View File

@ -195,7 +195,7 @@ void tipc_port_recv_mcast(struct sk_buff *buf, struct port_list *dp)
struct sk_buff *b = skb_clone(buf, GFP_ATOMIC);
if (b == NULL) {
warn("Buffer allocation failure\n");
warn("Unable to deliver multicast message(s)\n");
msg_dbg(msg, "LOST:");
goto exit;
}
@ -227,14 +227,14 @@ u32 tipc_createport_raw(void *usr_handle,
u32 ref;
p_ptr = kmalloc(sizeof(*p_ptr), GFP_ATOMIC);
if (p_ptr == NULL) {
warn("Memory squeeze; failed to create port\n");
if (!p_ptr) {
warn("Port creation failed, no memory\n");
return 0;
}
memset(p_ptr, 0, sizeof(*p_ptr));
ref = tipc_ref_acquire(p_ptr, &p_ptr->publ.lock);
if (!ref) {
warn("Reference Table Exhausted\n");
warn("Port creation failed, reference table exhausted\n");
kfree(p_ptr);
return 0;
}
@ -1059,7 +1059,7 @@ int tipc_createport(u32 user_ref,
u32 ref;
up_ptr = (struct user_port *)kmalloc(sizeof(*up_ptr), GFP_ATOMIC);
if (up_ptr == NULL) {
if (!up_ptr) {
warn("Port creation failed, no memory\n");
return -ENOMEM;
}

18
net/tipc/subscr.c
View File

@ -266,7 +266,8 @@ static void subscr_subscribe(struct tipc_subscr *s,
/* Refuse subscription if global limit exceeded */
if (atomic_read(&topsrv.subscription_count) >= tipc_max_subscriptions) {
warn("Failed: max %u subscriptions\n", tipc_max_subscriptions);
warn("Subscription rejected, subscription limit reached (%u)\n",
tipc_max_subscriptions);
subscr_terminate(subscriber);
return;
}
@ -274,8 +275,8 @@ static void subscr_subscribe(struct tipc_subscr *s,
/* Allocate subscription object */
sub = kmalloc(sizeof(*sub), GFP_ATOMIC);
if (sub == NULL) {
warn("Memory squeeze; ignoring subscription\n");
if (!sub) {
warn("Subscription rejected, no memory\n");
subscr_terminate(subscriber);
return;
}
@ -298,8 +299,7 @@ static void subscr_subscribe(struct tipc_subscr *s,
if ((((sub->filter != TIPC_SUB_PORTS)
&& (sub->filter != TIPC_SUB_SERVICE)))
|| (sub->seq.lower > sub->seq.upper)) {
warn("Rejecting illegal subscription %u,%u,%u\n",
sub->seq.type, sub->seq.lower, sub->seq.upper);
warn("Subscription rejected, illegal request\n");
kfree(sub);
subscr_terminate(subscriber);
return;
@ -387,7 +387,7 @@ static void subscr_named_msg_event(void *usr_handle,
dbg("subscr_named_msg_event: orig = %x own = %x,\n",
orig->node, tipc_own_addr);
if (size && (size != sizeof(struct tipc_subscr))) {
warn("Received tipc_subscr of invalid size\n");
warn("Subscriber rejected, invalid subscription size\n");
return;
}
@ -395,7 +395,7 @@ static void subscr_named_msg_event(void *usr_handle,
subscriber = kmalloc(sizeof(struct subscriber), GFP_ATOMIC);
if (subscriber == NULL) {
warn("Memory squeeze; ignoring subscriber setup\n");
warn("Subscriber rejected, no memory\n");
return;
}
memset(subscriber, 0, sizeof(struct subscriber));
@ -403,7 +403,7 @@ static void subscr_named_msg_event(void *usr_handle,
INIT_LIST_HEAD(&subscriber->subscriber_list);
subscriber->ref = tipc_ref_acquire(subscriber, &subscriber->lock);
if (subscriber->ref == 0) {
warn("Failed to acquire subscriber reference\n");
warn("Subscriber rejected, reference table exhausted\n");
kfree(subscriber);
return;
}
@ -422,7 +422,7 @@ static void subscr_named_msg_event(void *usr_handle,
NULL,
&subscriber->port_ref);
if (subscriber->port_ref == 0) {
warn("Memory squeeze; failed to create subscription port\n");
warn("Subscriber rejected, unable to create port\n");
tipc_ref_discard(subscriber->ref);
kfree(subscriber);
return;

19
net/tipc/zone.c
View File

@ -44,19 +44,24 @@
struct _zone *tipc_zone_create(u32 addr)
{
struct _zone *z_ptr = NULL;
struct _zone *z_ptr;
u32 z_num;
if (!tipc_addr_domain_valid(addr))
if (!tipc_addr_domain_valid(addr)) {
err("Zone creation failed, invalid domain 0x%x\n", addr);
return NULL;
}
z_ptr = (struct _zone *)kmalloc(sizeof(*z_ptr), GFP_ATOMIC);
if (z_ptr != NULL) {
memset(z_ptr, 0, sizeof(*z_ptr));
z_num = tipc_zone(addr);
z_ptr->addr = tipc_addr(z_num, 0, 0);
tipc_net.zones[z_num] = z_ptr;
if (!z_ptr) {
warn("Zone creation failed, insufficient memory\n");
return NULL;
}
memset(z_ptr, 0, sizeof(*z_ptr));
z_num = tipc_zone(addr);
z_ptr->addr = tipc_addr(z_num, 0, 0);
tipc_net.zones[z_num] = z_ptr;
return z_ptr;
}