libfreerdp-codec: allow region_uninit to be called multiple times

diff --git a/libfreerdp/codec/region.c b/libfreerdp/codec/region.c
index d309388..95ce193 100644 (file)
--- a/libfreerdp/codec/region.c
+++ b/libfreerdp/codec/region.c
@@ -798,10 +798,12 @@ BOOL region16_intersect_rect(REGION16 *dst, const REGION16 *src, const RECTANGLE
 void region16_uninit(REGION16 *region)
 {
        assert(region);
-       assert(region->data);
 
-       if (region->data->size)
-               free(region->data);
+       if (region->data)
+       {
+               if (region->data->size)
+                       free(region->data);
 
-       region->data = NULL;
+               region->data = NULL;
+       }
 }