[gegl] operations: Fix cast in nop.c

[Martin Nordholts <martinn src gnome org>]

commit baf7fe93385c2505124c03a72e83df7486243674
Author: Martin Nordholts <martinn src gnome org>
Date:   Tue Jan 5 13:43:08 2010 +0100

    operations: Fix cast in nop.c

 operations/core/nop.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/operations/core/nop.c b/operations/core/nop.c
index f5cf99b..8bb1232 100644
--- a/operations/core/nop.c
+++ b/operations/core/nop.c
@@ -46,7 +46,7 @@ process (GeglOperation        *operation,
       return FALSE;
     }
 
-  input = gegl_operation_context_get_object (context, "input");
+  input = GEGL_BUFFER (gegl_operation_context_get_object (context, "input"));
   if (!input)
     {
       g_warning ("nop received NULL input");