64bit bug in image signatures

diff --git a/images/sig-init.c b/images/sig-init.c
index 8a3b5ea2ab924861b81142058042fbe0dc9800c7..57eaa71b6b64f480b2d928408eac3ab91b45b90d 100644 (file)
--- a/images/sig-init.c
+++ b/images/sig-init.c
@@ -104,14 +104,14 @@ image_sig_preprocess(struct image_sig_data *data)
                    }
                  for (; x < 4; x++)
                    {
-                     *tp = tp[-square_cols];
+                     *tp = tp[-(int)square_cols];
                      tp++;
                    }
                }
              for (; y < 4; y++)
                for (x = 0; x < 4; x++)
                  {
-                   *tp = tp[-square_rows * 4];
+                   *tp = tp[-(int)square_rows * 4];
                    tp++;
                  }
              block->area = square_cols * square_rows;