[nautilus] general: Null-initialize auto pointers

[Ernestas Kulik <ernestask src gnome org>]

commit af87a20dc56f1b1ad4a87534bac5c1ff71ddda71
Author: Ernestas Kulik <ernestask gnome org>
Date:   Wed Oct 31 21:52:30 2018 +0100

    general: Null-initialize auto pointers
    
    It’s not done in some places. After this commit, there still might be
    some missing, but this is all I gathered in a short amount of time.

 src/nautilus-file-operations.c      | 2 +-
 src/nautilus-view-icon-controller.c | 4 ++--
 src/nautilus-view-icon-item-ui.c    | 2 +-
 src/nautilus-view-model.c           | 4 ++--
 4 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/src/nautilus-file-operations.c b/src/nautilus-file-operations.c
index f3cf2ca0f..d5379c7db 100644
--- a/src/nautilus-file-operations.c
+++ b/src/nautilus-file-operations.c
@@ -8000,7 +8000,7 @@ extract_job_on_scanned (AutoarExtractor *extractor,
     guint64 total_size;
     ExtractJob *extract_job;
     GFile *source_file;
-    g_autofree gchar *basename;
+    g_autofree gchar *basename = NULL;
     GFileInfo *fsinfo;
     guint64 free_size;
 
diff --git a/src/nautilus-view-icon-controller.c b/src/nautilus-view-icon-controller.c
index 10d075809..f96efbd81 100644
--- a/src/nautilus-view-icon-controller.c
+++ b/src/nautilus-view-icon-controller.c
@@ -894,8 +894,8 @@ real_add_files (NautilusFilesView *files_view,
                 GList             *files)
 {
     NautilusViewIconController *self = NAUTILUS_VIEW_ICON_CONTROLLER (files_view);
-    g_autoptr (GQueue) files_queue;
-    g_autoptr (GQueue) item_models;
+    g_autoptr (GQueue) files_queue = NULL;
+    g_autoptr (GQueue) item_models = NULL;
 
     files_queue = convert_glist_to_queue (files);
     item_models = convert_files_to_item_models (self, files_queue);
diff --git a/src/nautilus-view-icon-item-ui.c b/src/nautilus-view-icon-item-ui.c
index 4d0bb81cb..805c68f89 100644
--- a/src/nautilus-view-icon-item-ui.c
+++ b/src/nautilus-view-icon-item-ui.c
@@ -28,7 +28,7 @@ static GtkWidget *
 create_icon (NautilusViewIconItemUi *self)
 {
     NautilusFileIconFlags flags;
-    g_autoptr (GdkPixbuf) icon_pixbuf;
+    g_autoptr (GdkPixbuf) icon_pixbuf = NULL;
     GtkImage *icon;
     GtkBox *fixed_height_box;
     GtkStyleContext *style_context;
diff --git a/src/nautilus-view-model.c b/src/nautilus-view-model.c
index 08c073b78..12db63a30 100644
--- a/src/nautilus-view-model.c
+++ b/src/nautilus-view-model.c
@@ -186,8 +186,8 @@ nautilus_view_model_get_items_from_files (NautilusViewModel *self,
         while ((item_model = g_list_model_get_item (G_LIST_MODEL (self->internal_model), i)))
         {
             NautilusFile *file2;
-            g_autofree gchar *file1_uri;
-            g_autofree gchar *file2_uri;
+            g_autofree gchar *file1_uri = NULL;
+            g_autofree gchar *file2_uri = NULL;
 
             file2 = nautilus_view_item_model_get_file (item_model);
             file1_uri = nautilus_file_get_uri (file1);