[gegl] operation: validate source bounding box before returning it

[N/A <ell src gnome org>]

commit 0efe329e048cf36638c39e28b1c8ddf6743b48e4
Author: Ell <ell_se yahoo com>
Date:   Mon May 15 16:28:48 2017 -0400

    operation: validate source bounding box before returning it
    
    In gegl_operation_source_get_bounding_box(), make sure the source
    node's bounding box is valid (otherwise, compute it) before
    returning it.
    
    Comment out the lock around node->mutex; it may be acquired by the
    call to gegl_node_get_bounding_box(), causing a deadlock.  This
    lock is probably misplaced either way.

 gegl/operation/gegl-operation.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/gegl/operation/gegl-operation.c b/gegl/operation/gegl-operation.c
index 1286a25..5356420 100644
--- a/gegl/operation/gegl-operation.c
+++ b/gegl/operation/gegl-operation.c
@@ -378,9 +378,11 @@ gegl_operation_source_get_bounding_box (GeglOperation *operation,
   if (node)
     {
       GeglRectangle *ret;
-      g_mutex_lock (&node->mutex);
+      /* g_mutex_lock (&node->mutex); */
+      /* make sure node->have_rect is valid */
+      (void) gegl_node_get_bounding_box (node);
       ret = &node->have_rect;
-      g_mutex_unlock (&node->mutex);
+      /* g_mutex_unlock (&node->mutex); */
       return ret;
     }