--- asterisk-issue8824-2009-01-29/channels/chan_local.c	2009-01-29 10:23:30.000000000 +0100
+++ asterisk-issue8824-2009-01-29.new/channels/chan_local.c	2009-08-13 10:25:30.000000000 +0200
@@ -174,23 +174,25 @@
 static struct ast_channel *local_bridgedchannel(struct ast_channel *chan, struct ast_channel *bridge)
 {
 	struct local_pvt *p = bridge->tech_pvt;
-	struct ast_channel *bridged = bridge;
+	struct ast_channel *bridged = NULL;
 
-	ast_mutex_lock(&p->lock);
+	if (p) {
+		bridged = bridge;
 
-	if (ast_test_flag(p, LOCAL_BRIDGE)) {
-		/* Find the opposite channel */
-		bridged = (bridge == p->owner ? p->chan : p->owner);
+		ast_mutex_lock(&p->lock);
+		if (ast_test_flag(p, LOCAL_BRIDGE)) {
+			/* Find the opposite channel */
+			bridged = (bridge == p->owner ? p->chan : p->owner);
 		
-		/* Now see if the opposite channel is bridged to anything */
-		if (!bridged) {
-			bridged = bridge;
-		} else if (bridged->_bridge) {
-			bridged = bridged->_bridge;
+			/* Now see if the opposite channel is bridged to anything */
+			if (!bridged) {
+				bridged = bridge;
+			} else if (bridged->_bridge) {
+				bridged = bridged->_bridge;
+			}
 		}
-	}
-
-	ast_mutex_unlock(&p->lock);
+		ast_mutex_unlock(&p->lock);
+	}	
 
 	return bridged;
 }