Adapt last change to non-NS systems

* src/image.c (xpm_load_image): Also check whether mask_img is
NULL.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/image.c b/src/image.c
index f869a95c15d..96280f3ef46 100644
--- a/src/image.c
+++ b/src/image.c
@@ -6508,7 +6508,8 @@ xpm_load_image (struct frame *f,
   if (ximg)
     {
       image_destroy_x_image (ximg);
-      image_destroy_x_image (mask_img);
+      if (mask_img)
+        image_destroy_x_image (mask_img);
       image_clear_image (f, img);
     }
   return 0;