From 50ddb56dad7da1712c08505e409063d6e3bda7af Mon Sep 17 00:00:00 2001
From: Corey Farrell <git@cfware.com>
Date: Sat, 1 Jul 2017 00:57:31 -0400
Subject: channel: Clear channel flag in error branch.

Clear channel flag AST_FLAG_END_DTMF_ONLY in ast_waitfordigit_full when
ast_read returns NULL.

ASTERISK-27100 #close

Change-Id: Id3039e9a4e74e0cb359f636c9fd0c9740ebf7d9d
---
 main/channel.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/main/channel.c b/main/channel.c
index c7c2b9d1e..1a591bd27 100644
--- a/main/channel.c
+++ b/main/channel.c
@@ -3262,8 +3262,12 @@ int ast_waitfordigit_full(struct ast_channel *c, int timeout_ms, int audiofd, in
 		} else if (rchan) {
 			int res;
 			struct ast_frame *f = ast_read(c);
-			if (!f)
+
+			if (!f) {
+				ast_channel_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+
 				return -1;
+			}
 
 			switch (f->frametype) {
 			case AST_FRAME_DTMF_BEGIN:
-- 
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