Fix directed pickup to a call that is up (bug #5425 with mods)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6743 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_directed_pickup.c

@@ -100,7 +100,6 @@ static int pickup_exec(struct ast_channel *chan, void *data)
 		if (res) {
 			ast_log(LOG_WARNING, "Unable to answer '%s'\n", chan->name);
 			res = -1;
-			ast_mutex_unlock(&target->lock);
 			goto out;
 		}
 		res = ast_queue_control(chan, AST_CONTROL_ANSWER);
@@ -108,24 +107,21 @@ static int pickup_exec(struct ast_channel *chan, void *data)
 			ast_log(LOG_WARNING, "Unable to queue answer on '%s'\n",
 				chan->name);
 			res = -1;
-			ast_mutex_unlock(&target->lock);
 			goto out;
 		}
 		res = ast_channel_masquerade(target, chan);
 		if (res) {
 			ast_log(LOG_WARNING, "Unable to masquerade '%s' into '%s'\n", chan->name, target->name);
 			res = -1;
-			ast_mutex_unlock(&target->lock);
 			goto out;
 		}
-		/* Done */
-		ast_mutex_unlock(&target->lock);
 	} else {
 		ast_log(LOG_DEBUG, "No call pickup possible...\n");
 		res = -1;
 	}
-	
+	/* Done */
  out:
+	if (target) ast_mutex_unlock(&target->lock);
 	LOCAL_USER_REMOVE(u);
 
 	return res;