let you RrDestroy NULL

diff --git a/render2/init.c b/render2/init.c
index 8ed7237dc4b7a83239b3eb4e1e3dd5f7dc71b5d9..68394c3cdc93649e18dfe0c77c24b2824eae2e46 100644 (file)
--- a/render2/init.c
+++ b/render2/init.c
@@ -83,5 +83,7 @@ struct RrInstance *RrInit(Display *display,
 
 void RrDestroy(struct RrInstance *inst)
 {
-    RrInstanceFree(inst);
+    if (inst) {
+        RrInstanceFree(inst);
+    }
 }