Fix #311661: Fix potential crash in PianoView::updateNotes()

and in the same way as it is done in PianoLevels::updateNotes()and NoteTweakerDialog::updateNotes()
musescore · Oct 19, 2020 · 51b720e · 51b720e
1 parent af1ab0f
commit 51b720e
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/mscore/pianoroll/pianoview.cpp b/mscore/pianoroll/pianoview.cpp
@@ -1628,6 +1628,10 @@ void PianoView::updateNotes()
     scene()->clear();
     clearNoteData();
 
+    if (!_staff) {
+        return;
+    }
+
     int staffIdx = _staff->idx();
     if (staffIdx == -1) {
         return;