FS-3869 --resolve

diff --git a/src/mod/applications/mod_conference/mod_conference.c b/src/mod/applications/mod_conference/mod_conference.c
index 2689acb62aaf4619acc9b4104946571589865e12..8ba21c5b840f97022304e379cd5f3548f695d9b9 100644 (file)
--- a/src/mod/applications/mod_conference/mod_conference.c
+++ b/src/mod/applications/mod_conference/mod_conference.c
@@ -1257,15 +1257,17 @@ static void *SWITCH_THREAD_FUNC conference_video_thread_run(switch_thread_t *thr
                }
 
                session = conference->floor_holder->session;
-               switch_core_session_read_lock(session);
-               switch_mutex_unlock(conference->mutex);
-               if (!switch_channel_ready(switch_core_session_get_channel(session))) {
-                       status = SWITCH_STATUS_FALSE;
-               } else {
-                       status = switch_core_session_read_video_frame(session, &vid_frame, SWITCH_IO_FLAG_NONE, 0);
+
+               if ((status = switch_core_session_read_lock(session)) == SWITCH_STATUS_SUCCESS) {
+                       switch_mutex_unlock(conference->mutex);
+                       if (!switch_channel_ready(switch_core_session_get_channel(session))) {
+                               status = SWITCH_STATUS_FALSE;
+                       } else {
+                               status = switch_core_session_read_video_frame(session, &vid_frame, SWITCH_IO_FLAG_NONE, 0);
+                       }
+                       switch_mutex_lock(conference->mutex);
+                       switch_core_session_rwunlock(session);
                }
-               switch_mutex_lock(conference->mutex);
-               switch_core_session_rwunlock(session);
 
                if (!SWITCH_READ_ACCEPTABLE(status)) {
                        yield = 100000;