CID:1294431: make sure not to check uninitialized value

diff --git a/src/switch_core_media.c b/src/switch_core_media.c
index 068151bd71a4d2d8b5e14a71d2743f5931b3357b..c8b89224b49d760013fdb1c9f5eabfc03f3aeaec 100644 (file)
--- a/src/switch_core_media.c
+++ b/src/switch_core_media.c
@@ -4757,7 +4757,7 @@ static void *SWITCH_THREAD_FUNC video_helper_thread(switch_thread_t *thread, voi
        switch_core_session_t *session = mh->session;
        switch_channel_t *channel = switch_core_session_get_channel(session);
        switch_status_t status;
-       switch_frame_t *read_frame;
+       switch_frame_t *read_frame = NULL;
        switch_media_handle_t *smh;
        uint32_t loops = 0, xloops = 0, vloops = 0;
        switch_frame_t fr = { 0 };