From 7097f171433337095d1e192aa8f458c9cb03da5a Mon Sep 17 00:00:00 2001
From: Jehan Monnier <jehan.monnier@linphone.org>
Date: Mon, 26 Sep 2016 10:08:02 +0200
Subject: [PATCH] fix crash when try muting unexisting audio stream

---
 coreapi/linphonecore.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/coreapi/linphonecore.c b/coreapi/linphonecore.c
index acdae7b48..021659490 100644
--- a/coreapi/linphonecore.c
+++ b/coreapi/linphonecore.c
@@ -5105,7 +5105,8 @@ void linphone_core_enable_mic(LinphoneCore *lc, bool_t enable) {
 	for (elem = list; elem != NULL; elem = elem->next) {
 		call = (LinphoneCall *)elem->data;
 		call->audio_muted = !enable;
-		linphone_core_mute_audio_stream(lc, call->audiostream, !enable);
+        if (call->audiostream)
+		    linphone_core_mute_audio_stream(lc, call->audiostream, enable);
 	}
 }