More potential SMF crash fixes.

diff --git a/libs/evoral/src/SMF.cpp b/libs/evoral/src/SMF.cpp
index b75141d7fb9ce1f58a3f2d823bbecd1e33625fc4..78800923cae8c88ff727a50b21d5eda6255a3f36 100644 (file)
--- a/libs/evoral/src/SMF.cpp
+++ b/libs/evoral/src/SMF.cpp
@@ -44,7 +44,7 @@ uint16_t
 SMF::num_tracks() const
 {
        Glib::Threads::Mutex::Lock lm (_smf_lock);
-       return _smf->number_of_tracks;
+       return _smf ? _smf->number_of_tracks : 0;
 }
 
 uint16_t
@@ -167,7 +167,9 @@ SMF::create(const std::string& path, int track, uint16_t ppqn) THROW_FILE_ERROR
 
        for (int i = 0; i < track; ++i) {
                _smf_track = smf_track_new();
-               assert(_smf_track);
+               if (!_smf_track) {
+                       return -2;
+               }
                smf_add_track(_smf, _smf_track);
        }