0001-Only-deallocate-the-frame-if-it-isn-t-NULL.patch

From 53402e071c7f9d4646bd98c5e5d5e97e69073f3a Mon Sep 17 00:00:00 2001
From: Eric Lindvall <[email protected]>
Date: Fri, 27 May 2011 12:46:00 -0700
Subject: [PATCH] Only deallocate the frame if it isn't NULL.

---
 app_swift.c |   40 +++++++++++++++++++++-------------------
 1 files changed, 21 insertions(+), 19 deletions(-)

diff --git a/app_swift.c b/app_swift.c
index 29b24e7..4f67c37 100644
--- a/app_swift.c
+++ b/app_swift.c
@@ -409,27 +409,29 @@ static int app_exec(struct ast_channel *chan, void *data)
 					ASTOBJ_WRLOCK(ps);
 					ps->immediate_exit = 1;
 					ASTOBJ_UNLOCK(ps);
-				} else if (f->frametype == AST_FRAME_DTMF && timeout > 0 && max_digits > 0) {
-					char originDTMF = f->subclass;
-					alreadyran = 1;
-					res = 0;
-					ASTOBJ_WRLOCK(ps);
-					ps->immediate_exit = 1;
-					ASTOBJ_UNLOCK(ps);
-
-					if (max_digits > 1) {
-						rc = listen_for_dtmf(chan, timeout, max_digits - 1);
-					}
-					if (rc) {
-						sprintf(results, "%c%s", originDTMF, rc);
-					} else {
-						sprintf(results, "%c", originDTMF);
+				} else {
+					 if (f->frametype == AST_FRAME_DTMF && timeout > 0 && max_digits > 0) {
+						char originDTMF = f->subclass;
+						alreadyran = 1;
+						res = 0;
+						ASTOBJ_WRLOCK(ps);
+						ps->immediate_exit = 1;
+						ASTOBJ_UNLOCK(ps);
+
+						if (max_digits > 1) {
+							rc = listen_for_dtmf(chan, timeout, max_digits - 1);
+						}
+						if (rc) {
+							sprintf(results, "%c%s", originDTMF, rc);
+						} else {
+							sprintf(results, "%c", originDTMF);
+						}
+
+						ast_log(LOG_NOTICE, "DTMF = %s\n", results);
+						pbx_builtin_setvar_helper(chan, "SWIFT_DTMF", results);
 					}
-
-					ast_log(LOG_NOTICE, "DTMF = %s\n", results);
-					pbx_builtin_setvar_helper(chan, "SWIFT_DTMF", results);
+					ast_frfree(f);
 				}
-				ast_frfree(f);
 			}
 		}
 
-- 
1.7.5.2