[evolution] Address some of the Coverity Scan issues

[Milan Crha <mcrha src gnome org>]

commit 956a167f8dbab24c185b70597d822d05f99aa86a
Author: Milan Crha <mcrha redhat com>
Date:   Fri May 22 12:55:08 2015 +0200

    Address some of the Coverity Scan issues

 addressbook/gui/widgets/eab-contact-formatter.c |    4 ++--
 calendar/gui/e-calendar-view.c                  |    2 ++
 calendar/gui/e-day-view.c                       |    2 ++
 e-util/e-cell-date-edit.c                       |    4 ++--
 e-util/e-filter-input.c                         |    2 +-
 e-util/e-focus-tracker.c                        |    6 +++---
 e-util/e-table-sort-info.c                      |    4 ++--
 mail/e-mail-reader-utils.c                      |    1 +
 mail/em-folder-tree.c                           |    2 +-
 mail/message-list.c                             |    2 +-
 mail/test-mail-autoconfig.c                     |    2 ++
 11 files changed, 19 insertions(+), 12 deletions(-)
---
diff --git a/addressbook/gui/widgets/eab-contact-formatter.c b/addressbook/gui/widgets/eab-contact-formatter.c
index 8f32688..4869811 100644
--- a/addressbook/gui/widgets/eab-contact-formatter.c
+++ b/addressbook/gui/widgets/eab-contact-formatter.c
@@ -546,7 +546,7 @@ render_title_block (EABContactFormatter *formatter,
                const gchar *uri = photo->data.uri;
                /* WebKit 2.2.x doesn't re-escape URIs, thus do this for versions before and after this */
                #if !(WEBKIT_MAJOR_VERSION == 2 && WEBKIT_MINOR_VERSION == 2)
-               gchar *unescaped = g_uri_unescape_string (photo->data.uri, NULL);
+               gchar *unescaped = g_uri_unescape_string (uri, NULL);
                uri = unescaped;
                #endif
                g_string_append_printf (
@@ -1064,7 +1064,7 @@ render_compact (EABContactFormatter *formatter,
                        const gchar *uri = photo->data.uri;
                        /* WebKit 2.2.x doesn't re-escape URIs, thus do this for versions before and after 
this */
                        #if !(WEBKIT_MAJOR_VERSION == 2 && WEBKIT_MINOR_VERSION == 2)
-                       gchar *unescaped = g_uri_unescape_string (photo->data.uri, NULL);
+                       gchar *unescaped = g_uri_unescape_string (uri, NULL);
                        uri = unescaped;
                        #endif
                        g_string_append_printf (
diff --git a/calendar/gui/e-calendar-view.c b/calendar/gui/e-calendar-view.c
index d04ea5a..049fe1d 100644
--- a/calendar/gui/e-calendar-view.c
+++ b/calendar/gui/e-calendar-view.c
@@ -1860,6 +1860,8 @@ e_calendar_view_get_tooltips (const ECalendarViewEventData *data)
                        tmp = tmp2;
                        tmp2 = NULL;
                }
+       } else {
+               tmp = NULL;
        }
 
        e_cal_component_free_datetime (&dtstart);
diff --git a/calendar/gui/e-day-view.c b/calendar/gui/e-day-view.c
index 77e391e..555238d 100644
--- a/calendar/gui/e-day-view.c
+++ b/calendar/gui/e-day-view.c
@@ -612,6 +612,8 @@ e_day_view_get_text_color (EDayView *day_view,
                color.blue = 65535.0f;
        }
 
+       color.pixel = 0;
+
        return color;
 }
 
diff --git a/e-util/e-cell-date-edit.c b/e-util/e-cell-date-edit.c
index 5b203b4..24e9e8d 100644
--- a/e-util/e-cell-date-edit.c
+++ b/e-util/e-cell-date-edit.c
@@ -960,8 +960,8 @@ e_cell_date_edit_update_cell (ECellDateEdit *ecde,
                        ecell_text, ecv->e_table_model,
                        ecol->spec->model_col, ecp->popup_row, text);
                e_cell_leave_edit (
-                       ecv, ecp->popup_view_col,
-                       ecol->spec->model_col, ecp->popup_row, NULL);
+                       ecv, ecol->spec->model_col,
+                       ecp->popup_view_col, ecp->popup_row, NULL);
        }
 
        e_cell_text_free_text (ecell_text, ecv->e_table_model,
diff --git a/e-util/e-filter-input.c b/e-util/e-filter-input.c
index 8fa31d0..3772ce1 100644
--- a/e-util/e-filter-input.c
+++ b/e-util/e-filter-input.c
@@ -110,7 +110,7 @@ filter_input_validate (EFilterElement *element,
 
                regfree (&regexpat);
        } else if (!input->allow_empty && (!input->values || !input->values->next)) {
-               const gchar *value = input->values->data;
+               const gchar *value = input->values ? input->values->data : NULL;
                gboolean is_empty = value == NULL;
 
                if (value) {
diff --git a/e-util/e-focus-tracker.c b/e-util/e-focus-tracker.c
index 3d3daec..7a9477a 100644
--- a/e-util/e-focus-tracker.c
+++ b/e-util/e-focus-tracker.c
@@ -1178,9 +1178,9 @@ e_focus_tracker_paste_clipboard (EFocusTracker *focus_tracker)
 
        } else if (GTK_IS_TEXT_VIEW (focus)) {
                GtkClipboard *clipboard;
-               GtkTextView *text_view = GTK_TEXT_VIEW (focus);
-               GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
-               gboolean is_editable = gtk_text_view_get_editable (text_view);
+               GtkTextView *text_view;
+               GtkTextBuffer *buffer;
+               gboolean is_editable;
 
                clipboard = gtk_widget_get_clipboard (
                        focus, GDK_SELECTION_CLIPBOARD);
diff --git a/e-util/e-table-sort-info.c b/e-util/e-table-sort-info.c
index ae1806d..e36a7f5 100644
--- a/e-util/e-table-sort-info.c
+++ b/e-util/e-table-sort-info.c
@@ -860,7 +860,7 @@ e_table_sort_info_save_to_node (ETableSortInfo *sort_info,
 
        for (ii = 0; ii < group_count; ii++) {
                ETableColumnSpecification *column_spec;
-               GtkSortType sort_type;
+               GtkSortType sort_type = GTK_SORT_ASCENDING;
                xmlNode *new_node;
                gint index;
 
@@ -887,7 +887,7 @@ e_table_sort_info_save_to_node (ETableSortInfo *sort_info,
 
        for (ii = 0; ii < sort_count; ii++) {
                ETableColumnSpecification *column_spec;
-               GtkSortType sort_type;
+               GtkSortType sort_type = GTK_SORT_ASCENDING;
                xmlNode *new_node;
                gint index;
 
diff --git a/mail/e-mail-reader-utils.c b/mail/e-mail-reader-utils.c
index 9c84ba3..2ea4f55 100644
--- a/mail/e-mail-reader-utils.c
+++ b/mail/e-mail-reader-utils.c
@@ -1278,6 +1278,7 @@ mail_reader_print_parse_message_cb (GObject *source_object,
        if (local_error) {
                g_warn_if_fail (g_error_matches (local_error, G_IO_ERROR, G_IO_ERROR_CANCELLED));
 
+               /* coverity[check_return] */
                e_activity_handle_cancellation (activity, local_error);
                g_clear_error (&local_error);
                async_context_free (async_context);
diff --git a/mail/em-folder-tree.c b/mail/em-folder-tree.c
index eb8e676..37d5792 100644
--- a/mail/em-folder-tree.c
+++ b/mail/em-folder-tree.c
@@ -1950,7 +1950,7 @@ tree_drag_data_get (GtkWidget *widget,
        GtkTreeModel *model;
        GtkTreePath *src_path;
        CamelFolder *folder;
-       CamelStore *store;
+       CamelStore *store = NULL;
        GtkTreeIter iter;
        gchar *folder_name = NULL;
        gchar *folder_uri;
diff --git a/mail/message-list.c b/mail/message-list.c
index 905d978..b0922ed 100644
--- a/mail/message-list.c
+++ b/mail/message-list.c
@@ -3188,7 +3188,7 @@ message_list_duplicate_value (ETreeModel *tree_model,
 
                                return res;
                        } else
-                               return value;
+                               return NULL;
 
                default:
                        g_return_val_if_reached (NULL);
diff --git a/mail/test-mail-autoconfig.c b/mail/test-mail-autoconfig.c
index 8016384..f7d9e48 100644
--- a/mail/test-mail-autoconfig.c
+++ b/mail/test-mail-autoconfig.c
@@ -39,6 +39,8 @@ main (gint argc,
                autoconfig = e_mail_autoconfig_new_sync (
                        registry, argv[1], NULL, &error);
                g_object_unref (registry);
+       } else {
+               autoconfig = NULL;
        }
 
        /* Sanity check. */