[mutter] Remove a few more guards for frees

[Jasper St. Pierre <jstpierre src gnome org>]

commit cd4206764e716f8df8390fa1ab39ee05db3d1835
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Sun Dec 28 19:50:25 2014 -0800

    Remove a few more guards for frees

 src/core/prefs.c        |   10 +++-------
 src/core/screen.c       |    3 +--
 src/tests/test-runner.c |    3 +--
 src/ui/frames.c         |    3 +--
 src/ui/theme.c          |   11 +++--------
 5 files changed, 9 insertions(+), 21 deletions(-)
---
diff --git a/src/core/prefs.c b/src/core/prefs.c
index ebba39d..afbe8dd 100644
--- a/src/core/prefs.c
+++ b/src/core/prefs.c
@@ -571,8 +571,7 @@ handle_preference_init_string (void)
           if (!cursor->target)
             meta_bug ("%s must have handler or target\n", cursor->base.key);
 
-          if (*(cursor->target))
-            g_free (*(cursor->target));
+          g_free (*(cursor->target));
 
           value = g_settings_get_string (SETTINGS (cursor->base.schema),
                                          cursor->base.key);
@@ -728,8 +727,7 @@ handle_preference_update_string (GSettings *settings,
 
       inform_listeners = (g_strcmp0 (value, *(cursor->target)) != 0);
 
-      if (*(cursor->target))
-        g_free(*(cursor->target));
+      g_free(*(cursor->target));
 
       *(cursor->target) = value;
     }
@@ -1391,9 +1389,7 @@ theme_name_handler (GVariant *value,
 
   if (g_strcmp0 (current_theme, string_value) != 0)
     {
-      if (current_theme)
-        g_free (current_theme);
-
+      g_free (current_theme);
       current_theme = g_strdup (string_value);
       queue_changed (META_PREF_THEME);
     }
diff --git a/src/core/screen.c b/src/core/screen.c
index 740a584..13e8c7f 100644
--- a/src/core/screen.c
+++ b/src/core/screen.c
@@ -835,8 +835,7 @@ meta_screen_free (MetaScreen *screen,
   if (screen->check_fullscreen_later != 0)
     meta_later_remove (screen->check_fullscreen_later);
 
-  if (screen->monitor_infos)
-    g_free (screen->monitor_infos);
+  g_free (screen->monitor_infos);
 
   if (screen->tile_preview_timeout_id)
     g_source_remove (screen->tile_preview_timeout_id);
diff --git a/src/tests/test-runner.c b/src/tests/test-runner.c
index 3234c53..7405c88 100644
--- a/src/tests/test-runner.c
+++ b/src/tests/test-runner.c
@@ -330,8 +330,7 @@ test_client_do (TestClient *client,
 
  out:
   g_string_free (command, TRUE);
-  if (line)
-    g_free (line);
+  g_free (line);
 
   return *error == NULL;
 }
diff --git a/src/ui/frames.c b/src/ui/frames.c
index c1571f3..18c34a8 100644
--- a/src/ui/frames.c
+++ b/src/ui/frames.c
@@ -609,8 +609,7 @@ meta_frames_unmanage_window (MetaFrames *frames,
       if (frame->layout)
         g_object_unref (G_OBJECT (frame->layout));
 
-      if (frame->title)
-        g_free (frame->title);
+      g_free (frame->title);
 
       g_free (frame);
     }
diff --git a/src/ui/theme.c b/src/ui/theme.c
index 8ae9605..ad81543 100644
--- a/src/ui/theme.c
+++ b/src/ui/theme.c
@@ -1117,8 +1117,7 @@ meta_color_spec_free (MetaColorSpec *spec)
       break;
 
     case META_COLOR_SPEC_GTK_CUSTOM:
-      if (spec->data.gtkcustom.color_name)
-        g_free (spec->data.gtkcustom.color_name);
+      g_free (spec->data.gtkcustom.color_name);
       if (spec->data.gtkcustom.fallback)
         meta_color_spec_free (spec->data.gtkcustom.fallback);
       DEBUG_FILL_STRUCT (&spec->data.gtkcustom);
@@ -2956,9 +2955,7 @@ meta_draw_op_free (MetaDrawOp *op)
       break;
 
     case META_DRAW_RECTANGLE:
-      if (op->data.rectangle.color_spec)
-        g_free (op->data.rectangle.color_spec);
-
+      g_free (op->data.rectangle.color_spec);
       meta_draw_spec_free (op->data.rectangle.x);
       meta_draw_spec_free (op->data.rectangle.y);
       meta_draw_spec_free (op->data.rectangle.width);
@@ -2966,9 +2963,7 @@ meta_draw_op_free (MetaDrawOp *op)
       break;
 
     case META_DRAW_ARC:
-      if (op->data.arc.color_spec)
-        g_free (op->data.arc.color_spec);
-
+      g_free (op->data.arc.color_spec);
       meta_draw_spec_free (op->data.arc.x);
       meta_draw_spec_free (op->data.arc.y);
       meta_draw_spec_free (op->data.arc.width);