X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=net%2Ftipc%2Fcluster.c;h=95b373913aa0dd21ae33a73dc730b92fd2e5c2fa;hb=1747fb71fd7c9389696e91f354d2f841b5c85790;hp=1aed81584e9693e0c9d075cd4148a6dff1f4a2f4;hpb=86579dd06deecfa6ac88d5e84e4d63c397cd6f6d;p=cascardo%2Flinux.git

diff --git a/net/tipc/cluster.c b/net/tipc/cluster.c
index 1aed81584e96..95b373913aa0 100644
--- a/net/tipc/cluster.c
+++ b/net/tipc/cluster.c
@@ -1,6 +1,6 @@
 /*
  * net/tipc/cluster.c: TIPC cluster management routines
- * 
+ *
  * Copyright (c) 2000-2006, Ericsson AB
  * Copyright (c) 2005, Wind River Systems
  * All rights reserved.
@@ -56,44 +56,44 @@ struct cluster *tipc_cltr_create(u32 addr)
 {
 	struct _zone *z_ptr;
 	struct cluster *c_ptr;
-	int max_nodes; 
-	int alloc;
+	int max_nodes;
 
-	c_ptr = (struct cluster *)kmalloc(sizeof(*c_ptr), GFP_ATOMIC);
-	if (c_ptr == NULL)
+	c_ptr = kzalloc(sizeof(*c_ptr), GFP_ATOMIC);
+	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);
 	if (in_own_cluster(addr))
 		max_nodes = LOWEST_SLAVE + tipc_max_slaves;
 	else
 		max_nodes = tipc_max_nodes + 1;
-	alloc = sizeof(void *) * (max_nodes + 1);
-	c_ptr->nodes = (struct node **)kmalloc(alloc, GFP_ATOMIC);
+
+	c_ptr->nodes = kcalloc(max_nodes + 1, sizeof(void*), 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);  
+
 	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;
 }
 
@@ -150,7 +150,7 @@ void tipc_cltr_attach_node(struct cluster *c_ptr, struct node *n_ptr)
 
 /**
  * tipc_cltr_select_router - select router to a cluster
- * 
+ *
  * Uses deterministic and fair algorithm.
  */
 
@@ -192,7 +192,7 @@ u32 tipc_cltr_select_router(struct cluster *c_ptr, u32 ref)
 
 /**
  * tipc_cltr_select_node - select destination node within a remote cluster
- * 
+ *
  * Uses deterministic and fair algorithm.
  */
 
@@ -295,7 +295,7 @@ void tipc_cltr_send_slave_routes(struct cluster *c_ptr, u32 dest)
 		msg_set_remote_node(msg, c_ptr->addr);
 		msg_set_type(msg, SLAVE_ROUTING_TABLE);
 		for (n_num = LOWEST_SLAVE; n_num <= highest; n_num++) {
-			if (c_ptr->nodes[n_num] && 
+			if (c_ptr->nodes[n_num] &&
 			    tipc_node_has_active_links(c_ptr->nodes[n_num])) {
 				send = 1;
 				msg_set_dataoctet(msg, n_num);
@@ -329,7 +329,7 @@ void tipc_cltr_send_ext_routes(struct cluster *c_ptr, u32 dest)
 		msg_set_remote_node(msg, c_ptr->addr);
 		msg_set_type(msg, EXT_ROUTING_TABLE);
 		for (n_num = 1; n_num <= highest; n_num++) {
-			if (c_ptr->nodes[n_num] && 
+			if (c_ptr->nodes[n_num] &&
 			    tipc_node_has_active_links(c_ptr->nodes[n_num])) {
 				send = 1;
 				msg_set_dataoctet(msg, n_num);
@@ -360,7 +360,7 @@ void tipc_cltr_send_local_routes(struct cluster *c_ptr, u32 dest)
 		msg_set_remote_node(msg, c_ptr->addr);
 		msg_set_type(msg, LOCAL_ROUTING_TABLE);
 		for (n_num = 1; n_num <= highest; n_num++) {
-			if (c_ptr->nodes[n_num] && 
+			if (c_ptr->nodes[n_num] &&
 			    tipc_node_has_active_links(c_ptr->nodes[n_num])) {
 				send = 1;
 				msg_set_dataoctet(msg, n_num);
@@ -492,7 +492,7 @@ void tipc_cltr_remove_as_router(struct cluster *c_ptr, u32 router)
 }
 
 /**
- * tipc_cltr_multicast - multicast message to local nodes 
+ * tipc_cltr_multicast - multicast message to local nodes
  */
 
 static void tipc_cltr_multicast(struct cluster *c_ptr, struct sk_buff *buf,
@@ -554,9 +554,9 @@ void tipc_cltr_broadcast(struct sk_buff *buf)
 					buf_copy = skb_copy(buf, GFP_ATOMIC);
 					if (buf_copy == NULL)
 						goto exit;
-					msg_set_destnode(buf_msg(buf_copy), 
+					msg_set_destnode(buf_msg(buf_copy),
 							 n_ptr->addr);
-					tipc_link_send(buf_copy, n_ptr->addr, 
+					tipc_link_send(buf_copy, n_ptr->addr,
 						       n_ptr->addr);
 				}
 			}