babl: palette, improve assert in pala_to_rgba

diff --git a/babl/babl-palette.c b/babl/babl-palette.c
index 9b232ce3f8fddf4379264948e38e82ea52d9c86c..205573ff660293b05dbff09840021f6bf459647b 100644 (file)
--- a/babl/babl-palette.c
+++ b/babl/babl-palette.c
@@ -448,7 +448,10 @@ pala_to_rgba (Babl *conversion,
               void *src_model_data)
 {
   BablPalette **palptr = src_model_data;
-  BablPalette *pal = *palptr;
+  BablPalette *pal;
+
+  assert(palptr);
+  pal  = *palptr;
 
   assert(pal);
   while (n--)