[at-spi2-atk] atk_bridge_adaptor_init: return -1 if NO_AT_BRIDGE is set

[Mike Gorse <mgorse src gnome org>]

commit 1cff8f113886ee9e93567f6bc2538de525ce471d
Author: Samuel Thibault <samuel thibault ens-lyon org>
Date:   Mon Aug 29 15:03:12 2016 -0500

    atk_bridge_adaptor_init: return -1 if NO_AT_BRIDGE is set
    
    This will give the caller a clue that the bridge hasn't
    initialized.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=770574

 atk-adaptor/bridge.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/atk-adaptor/bridge.c b/atk-adaptor/bridge.c
index e76e833..7de84d4 100644
--- a/atk-adaptor/bridge.c
+++ b/atk-adaptor/bridge.c
@@ -987,8 +987,10 @@ atk_bridge_adaptor_init (gint * argc, gchar ** argv[])
   if (inited && !load_bridge)
     g_warning ("ATK Bridge is disabled but a11y has already been enabled.");
 
-  if (inited || !load_bridge)
+  if (inited)
     return 0;
+  if (!load_bridge)
+    return -1;
 
   inited = TRUE;