fix crash on null pointer

reported by Mikko Rapeli

diff --git a/src/framework/mlt_deque.c b/src/framework/mlt_deque.c
index d0ba59fecbd3a55ac573e744f2a468bd7fcc24e0..ca9c1a622257ca2a9a9404cd2c1dc688633ef42a 100644 (file)
--- a/src/framework/mlt_deque.c
+++ b/src/framework/mlt_deque.c
@@ -74,7 +74,10 @@ mlt_deque mlt_deque_init( )
 
 int mlt_deque_count( mlt_deque self )
 {
-       return self->count;
+       if ( self )
+               return self->count;
+       else
+               return 0;
 }
 
 /** Allocate space on the deque.