[evolution-data-server] Fix some "may be used uninitialized" compiler warnings

[Milan Crha <mcrha src gnome org>]

commit ea6b965068ee4d68e147b07e8c70b2334b23dac9
Author: Milan Crha <mcrha redhat com>
Date:   Mon Sep 30 14:46:52 2013 +0200

    Fix some "may be used uninitialized" compiler warnings

 .../backends/google/e-book-backend-google.c        |    2 +-
 calendar/backends/file/e-cal-backend-file.c        |    4 ++--
 calendar/libecal/e-cal.c                           |    2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/addressbook/backends/google/e-book-backend-google.c 
b/addressbook/backends/google/e-book-backend-google.c
index 456b18c..b0c1008 100644
--- a/addressbook/backends/google/e-book-backend-google.c
+++ b/addressbook/backends/google/e-book-backend-google.c
@@ -1653,7 +1653,7 @@ book_backend_google_create_contacts_sync (EBookBackend *backend,
                                           GError **error)
 {
        EBookBackendGooglePrivate *priv;
-       EContactPhoto *photo;
+       EContactPhoto *photo = NULL;
        EContact *contact;
        GDataEntry *entry;
        GDataContactsContact *new_contact;
diff --git a/calendar/backends/file/e-cal-backend-file.c b/calendar/backends/file/e-cal-backend-file.c
index e50c610..420b988 100644
--- a/calendar/backends/file/e-cal-backend-file.c
+++ b/calendar/backends/file/e-cal-backend-file.c
@@ -1376,7 +1376,7 @@ e_cal_backend_file_open (ECalBackendSync *backend,
        ECalBackendFile *cbfile;
        ECalBackendFilePrivate *priv;
        gchar *str_uri;
-       gboolean writable;
+       gboolean writable = FALSE;
        GError *err = NULL;
 
        cbfile = E_CAL_BACKEND_FILE (backend);
@@ -3624,7 +3624,7 @@ e_cal_backend_file_reload (ECalBackendFile *cbfile,
 {
        ECalBackendFilePrivate *priv;
        gchar *str_uri;
-       gboolean writable;
+       gboolean writable = FALSE;
        GError *err = NULL;
 
        priv = cbfile->priv;
diff --git a/calendar/libecal/e-cal.c b/calendar/libecal/e-cal.c
index 070d121..b868416 100644
--- a/calendar/libecal/e-cal.c
+++ b/calendar/libecal/e-cal.c
@@ -671,7 +671,7 @@ e_cal_open (ECal *ecal,
             gboolean only_if_exists,
             GError **error)
 {
-       ECalendarStatus status;
+       ECalendarStatus status = E_CALENDAR_STATUS_OK;
        GError *err = NULL;
        gboolean result;