[gegl] use a proper cl_process parameter type

[Téo Mazars <teom src gnome org>]

commit fc2cc1ecad711679975fa98e28221126edd31f96
Author: Téo Mazars <teomazars gmail com>
Date:   Sun Mar 2 13:18:01 2014 +0100

    use a proper cl_process parameter type

 operations/common/texturize-canvas.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/operations/common/texturize-canvas.c b/operations/common/texturize-canvas.c
index cbf1c12..8287833 100644
--- a/operations/common/texturize-canvas.c
+++ b/operations/common/texturize-canvas.c
@@ -4192,7 +4192,7 @@ static gboolean
 cl_process(GeglOperation *op,
            cl_mem in_tex,
            cl_mem out_tex,
-           glong samples,
+           size_t samples,
            const GeglRectangle *roi,
            gint level)
 {