tweak

diff --git a/src/switch_core_io.c b/src/switch_core_io.c
index 42f45859d1d0ca673285af50ee781af76583bb6d..cd25622b5d27741f85ff55f1d524d8d25b2a51f6 100644 (file)
--- a/src/switch_core_io.c
+++ b/src/switch_core_io.c
@@ -666,18 +666,19 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_write_frame(switch_core_sess
                return status;
        }
 
+       switch_mutex_lock(session->codec_write_mutex);
+
        if (!(frame->codec && frame->codec->implementation)) {
                switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "%s has received a bad frame with no codec!\n", 
                                                  switch_channel_get_name(session->channel));
                switch_channel_hangup(session->channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
+               switch_mutex_unlock(session->codec_write_mutex);
                return SWITCH_STATUS_FALSE;
        }
 
        switch_assert(frame->codec != NULL);
        switch_assert(frame->codec->implementation != NULL);
 
-       switch_mutex_lock(session->codec_write_mutex);
-
        if (!(switch_core_codec_ready(session->write_codec) && frame->codec) ||
                !switch_channel_ready(session->channel) || !switch_channel_media_ready(session->channel)) {
                switch_mutex_unlock(session->codec_write_mutex);