mg2d: do not crash if print_stats() is called before any solves

1 files changed, 3 insertions, 0 deletions

diff --git a/mg2d.c b/mg2d.c
index c9070fb..b1c7fb7 100644
--- a/mg2d.c
+++ b/mg2d.c
@@ -772,6 +772,9 @@ void mg2d_print_stats(MG2DContext *ctx, const char *prefix)
     MG2DLevel *level = priv->root;
     int64_t other, levels_total = 0;
 
+    if (!level)
+        return;
+
     if (!prefix)
         prefix = "";