Index: include/asterisk/channel.h
===================================================================
--- include/asterisk/channel.h	(revision 154189)
+++ include/asterisk/channel.h	(working copy)
@@ -1177,6 +1177,9 @@
 struct ast_channel *ast_walk_channel_by_exten_locked(const struct ast_channel *chan, const char *exten,
 						     const char *context);
 
+/*! \brief Search for a channel based on the specified filter (first match) and lock it */
+struct ast_channel *ast_channel_search_locked(int (*filter)(struct ast_channel *));
+
 /*! ! \brief Waits for a digit
  * \param c channel to wait for a digit on
  * \param ms how many milliseconds to wait
Index: main/channel.c
===================================================================
--- main/channel.c	(revision 154189)
+++ main/channel.c	(working copy)
@@ -1226,6 +1226,24 @@
 	return channel_find_locked(chan, NULL, 0, context, exten);
 }
 
+/*! \brief Search for a channel based on the specified filter (first match) and lock it */
+struct ast_channel *ast_channel_search_locked(int (*filter)(struct ast_channel *))
+{
+	struct ast_channel *c;
+
+	AST_RWLIST_RDLOCK(&channels);
+	AST_RWLIST_TRAVERSE(&channels, c, chan_list) {
+		if (filter(c)) {
+			ast_channel_lock(c);
+			AST_RWLIST_UNLOCK(&channels);
+			return c;
+		}
+	}
+	AST_RWLIST_UNLOCK(&channels);
+
+	return NULL;
+}
+
 /*! \brief Wait, look for hangups and condition arg */
 int ast_safe_sleep_conditional(struct ast_channel *chan, int ms, int (*cond)(void*), void *data)
 {