[libadwaita] adw-settings: Fix a leak if schema doesn’t have the expected keys

[Alexander Mikhaylenko <alexm src gnome org>]

commit 260cfa445d0dfe3cd2dcca2a6ce1b4ed510c1936
Author: Philip Withnall <pwithnall endlessos org>
Date:   Thu Mar 3 16:39:53 2022 +0000

    adw-settings: Fix a leak if schema doesn’t have the expected keys
    
    The `GSettingsSchema`s should be unreffed unconditionally, not
    conditionally.
    
    Signed-off-by: Philip Withnall <pwithnall endlessos org>

 src/adw-settings.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/src/adw-settings.c b/src/adw-settings.c
index c2571ac0..12e908d1 100644
--- a/src/adw-settings.c
+++ b/src/adw-settings.c
@@ -429,10 +429,10 @@ init_gsettings (AdwSettings *self)
                               "changed::color-scheme",
                               G_CALLBACK (gsettings_color_scheme_changed_cb),
                               self);
-
-    g_settings_schema_unref (schema);
   }
 
+  g_clear_pointer (&schema, g_settings_schema_unref);
+
   schema = g_settings_schema_source_lookup (source, "org.gnome.desktop.a11y.interface", TRUE);
   if (schema &&
       !self->has_high_contrast &&
@@ -445,9 +445,9 @@ init_gsettings (AdwSettings *self)
                               "changed::high-contrast",
                               G_CALLBACK (gsettings_high_contrast_changed_cb),
                               self);
-
-    g_settings_schema_unref (schema);
   }
+
+  g_clear_pointer (&schema, g_settings_schema_unref);
 }
 
 /* Legacy */