[gnome-flashback] input-sources: initialize prop variable

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 33f22ec0ca3c87d38ee170c0f9f1c4bccc08c4b8
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Wed Jan 22 16:36:27 2020 +0200

    input-sources: initialize prop variable

 .../libinput-sources/gf-input-source-manager.c           | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)
---
diff --git a/gnome-flashback/libinput-sources/gf-input-source-manager.c 
b/gnome-flashback/libinput-sources/gf-input-source-manager.c
index 17315ff..ee5d95e 100644
--- a/gnome-flashback/libinput-sources/gf-input-source-manager.c
+++ b/gnome-flashback/libinput-sources/gf-input-source-manager.c
@@ -154,6 +154,7 @@ get_active_window (void)
 
   gdk_x11_display_error_trap_push (display);
 
+  prop = NULL;
   status = XGetWindowProperty (xdisplay,
                                DefaultRootWindow (xdisplay),
                                _net_active_window,
@@ -167,21 +168,12 @@ get_active_window (void)
                                &bytes_after,
                                &prop);
 
+  gdk_x11_display_error_trap_pop_ignored (display);
+
   if (status != Success ||
       actual_type != XA_WINDOW)
     {
-      if (prop)
-        XFree (prop);
-
-      gdk_x11_display_error_trap_pop_ignored (display);
-
-      return None;
-    }
-
-  if (gdk_x11_display_error_trap_pop (display) != Success)
-    {
-      if (prop)
-        XFree (prop);
+      XFree (prop);
 
       return None;
     }