[ostree] core: Increase type safety of some local alloc functions

[Colin Walters <walters src gnome org>]

commit ff3867c05242f86bf000720058e22046abe1c8d3
Author: Colin Walters <walters verbum org>
Date:   Thu May 3 13:26:24 2012 -0400

    core: Increase type safety of some local alloc functions

 src/libotutil/ot-local-alloc.c |   19 ++++++++++++-------
 src/libotutil/ot-local-alloc.h |    6 +++---
 2 files changed, 15 insertions(+), 10 deletions(-)
---
diff --git a/src/libotutil/ot-local-alloc.c b/src/libotutil/ot-local-alloc.c
index ab62e0d..cf1dba3 100644
--- a/src/libotutil/ot-local-alloc.c
+++ b/src/libotutil/ot-local-alloc.c
@@ -45,23 +45,28 @@ ot_local_free (void *loc)
 void
 ot_local_obj_unref (void *loc)
 {
-  _ot_local_free(GObject, g_object_unref);
+  GObject **location = (GObject**)loc;
+  if (location && *location)
+    g_object_unref (*location);
 }
 
 void
-ot_local_variant_unref (void *loc)
+ot_local_variant_unref (GVariant **loc)
 {
-  _ot_local_free(GVariant, g_variant_unref);
+  if (loc && *loc)
+    g_variant_unref (*loc);
 }
 
 void
-ot_local_ptrarray_unref (void *loc)
+ot_local_ptrarray_unref (GPtrArray **loc)
 {
-  _ot_local_free(GPtrArray, g_ptr_array_unref);
+  if (loc && *loc)
+    g_ptr_array_unref (*loc);
 }
 
 void
-ot_local_hashtable_unref (void *loc)
+ot_local_hashtable_unref (GHashTable **loc)
 {
-  _ot_local_free(GHashTable, g_hash_table_unref);
+  if (loc && *loc)
+    g_hash_table_unref (*loc);
 }
diff --git a/src/libotutil/ot-local-alloc.h b/src/libotutil/ot-local-alloc.h
index 2aeea75..3cbfc52 100644
--- a/src/libotutil/ot-local-alloc.h
+++ b/src/libotutil/ot-local-alloc.h
@@ -29,9 +29,9 @@ G_BEGIN_DECLS
 
 void ot_local_free (void *loc);
 void ot_local_obj_unref (void *loc);
-void ot_local_variant_unref (void *loc);
-void ot_local_ptrarray_unref (void *loc);
-void ot_local_hashtable_unref (void *loc);
+void ot_local_variant_unref (GVariant **loc);
+void ot_local_ptrarray_unref (GPtrArray **loc);
+void ot_local_hashtable_unref (GHashTable **loc);
 
 #define ot_lfree __attribute__ ((cleanup(ot_local_free)))
 #define ot_lobj __attribute__ ((cleanup(ot_local_obj_unref)))