[nautilus] window: fix file leak

[Carlos Soriano Sánchez <csoriano src gnome org>]

commit cc376b689c6b4051c94f7fd798a107887d1eaf59
Author: Carlos Soriano <csoriano gnome org>
Date:   Tue Apr 12 14:23:33 2016 +0200

    window: fix file leak
    
    https://bugzilla.gnome.org/show_bug.cgi?id=712620

 src/nautilus-window.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/src/nautilus-window.c b/src/nautilus-window.c
index 99a2d22..ff5212c 100644
--- a/src/nautilus-window.c
+++ b/src/nautilus-window.c
@@ -538,6 +538,7 @@ real_create_slot (NautilusWindow *window,
                   GFile          *location)
 {
         NautilusFile *file = NULL;
+        NautilusWindowSlot *slot;
 
         if (location) {
                 file = nautilus_file_get (location);
@@ -546,10 +547,14 @@ real_create_slot (NautilusWindow *window,
          * to a different location if not.
          */
         if (file && nautilus_file_is_other_locations (file)) {
-                return NAUTILUS_WINDOW_SLOT (nautilus_other_locations_window_slot_new (window));
+                slot = NAUTILUS_WINDOW_SLOT (nautilus_other_locations_window_slot_new (window));
         } else {
-                return nautilus_window_slot_new (window);
+                slot = nautilus_window_slot_new (window);
         }
+
+        nautilus_file_unref (file);
+
+        return slot;
 }
 
 void