[gimp] app, libgimp: validate procedure arguments taking class heritage into…

[Jehan <jehanp src gnome org>]

commit 60b9c5633e14860643524b313260ab9daee1c55d
Author: Jehan <jehan girinstud io>
Date:   Wed Apr 21 00:00:32 2021 +0200

    app, libgimp: validate procedure arguments taking class heritage into…
    
    … account.

 app/pdb/gimpprocedure.c | 2 +-
 libgimp/gimpprocedure.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/app/pdb/gimpprocedure.c b/app/pdb/gimpprocedure.c
index f228acb825..535eda83cf 100644
--- a/app/pdb/gimpprocedure.c
+++ b/app/pdb/gimpprocedure.c
@@ -839,7 +839,7 @@ gimp_procedure_validate_args (GimpProcedure  *procedure,
       GType       arg_type  = G_VALUE_TYPE (arg);
       GType       spec_type = G_PARAM_SPEC_VALUE_TYPE (pspec);
 
-      if (arg_type != spec_type)
+      if (! g_type_is_a (arg_type, spec_type))
         {
           if (return_vals)
             {
diff --git a/libgimp/gimpprocedure.c b/libgimp/gimpprocedure.c
index 13c72b25f1..60b7e662f7 100644
--- a/libgimp/gimpprocedure.c
+++ b/libgimp/gimpprocedure.c
@@ -1970,7 +1970,7 @@ gimp_procedure_validate_args (GimpProcedure   *procedure,
       GType       arg_type  = G_VALUE_TYPE (arg);
       GType       spec_type = G_PARAM_SPEC_VALUE_TYPE (pspec);
 
-      if (arg_type != spec_type)
+      if (! g_type_is_a (arg_type, spec_type))
         {
           if (return_vals)
             {