[krb5-auth-dialog] Fix compile warnings

[Guido Günther <guidog src gnome org>]

commit 319c4cbf719c7972a5f9445e02b427ad7eed06f1
Author: Guido Günther <agx sigxcpu org>
Date:   Sun Feb 7 16:38:33 2021 +0100

    Fix compile warnings
    
    Silence compile warnings brought up by different compoile flags
    when using meson.

 src/ka-applet.c      |  2 +-
 src/ka-dbus.c        |  2 +-
 src/ka-kerberos.c    | 10 +++++-----
 src/ka-main-window.c |  2 +-
 src/ka-plugin.c      |  4 +++-
 5 files changed, 11 insertions(+), 9 deletions(-)
---
diff --git a/src/ka-applet.c b/src/ka-applet.c
index 73d752e..a56342e 100644
--- a/src/ka-applet.c
+++ b/src/ka-applet.c
@@ -816,7 +816,7 @@ ka_applet_destroy (KaApplet* self)
 
 
 KaApplet *
-ka_applet_create ()
+ka_applet_create (void)
 {
     KaApplet *applet = ka_applet_new ();
 
diff --git a/src/ka-dbus.c b/src/ka-dbus.c
index 7d4bb1c..8000e50 100644
--- a/src/ka-dbus.c
+++ b/src/ka-dbus.c
@@ -192,7 +192,7 @@ ka_dbus_register (KaApplet *applet)
 
 
 void
-ka_dbus_disconnect ()
+ka_dbus_disconnect (void)
 {
     if (introspection_data) {
         g_dbus_node_info_unref (introspection_data);
diff --git a/src/ka-kerberos.c b/src/ka-kerberos.c
index aa885aa..520acb7 100644
--- a/src/ka-kerberos.c
+++ b/src/ka-kerberos.c
@@ -249,7 +249,7 @@ credentials_expiring_real (KaApplet *applet)
 
 /* time in seconds the tgt will be still valid */
 int
-ka_tgt_valid_seconds ()
+ka_tgt_valid_seconds (void)
 {
     krb5_timestamp now;
 
@@ -641,7 +641,7 @@ ka_parse_name (KaApplet *applet, krb5_context krbcontext,
  * caller needs to free the returned result using g_free();
  */
 char *
-ka_unparse_name ()
+ka_unparse_name (void)
 {
     char *princ, *gprinc = NULL;
     krb5_error_code err;
@@ -886,7 +886,7 @@ ka_get_tgt_from_ccache (krb5_context context, krb5_creds *creds)
 }
 
 static gboolean
-ka_krb5_context_init ()
+ka_krb5_context_init (void)
 {
     krb5_error_code err;
     gboolean have_tgt = FALSE;
@@ -908,7 +908,7 @@ ka_krb5_context_init ()
 
 
 static gboolean
-ka_krb5_context_free ()
+ka_krb5_context_free (void)
 {
     if (kcontext_valid) {
         kcontext_valid = FALSE;
@@ -1056,7 +1056,7 @@ ka_kerberos_init (KaApplet *applet)
 
 
 gboolean
-ka_kerberos_destroy ()
+ka_kerberos_destroy (void)
 {
     if (ccache_monitor)
         g_object_unref (ccache_monitor);
diff --git a/src/ka-main-window.c b/src/ka-main-window.c
index 1509b20..652228c 100644
--- a/src/ka-main-window.c
+++ b/src/ka-main-window.c
@@ -179,7 +179,7 @@ ka_main_window_show (KaApplet *applet)
 }
 
 void
-ka_main_window_hide ()
+ka_main_window_hide (void)
 {
     KA_DEBUG("Hiding main window");
     gtk_widget_hide (GTK_WIDGET(main_window));
diff --git a/src/ka-plugin.c b/src/ka-plugin.c
index 40e75d6..36ec75a 100644
--- a/src/ka-plugin.c
+++ b/src/ka-plugin.c
@@ -32,9 +32,11 @@ G_DEFINE_TYPE_WITH_PRIVATE (KaPlugin, ka_plugin, G_TYPE_OBJECT)
 const char*
 ka_plugin_get_name (KaPlugin *self)
 {
-       g_return_val_if_fail (KA_IS_PLUGIN (self), NULL);
        KaPluginPrivate *priv = ka_plugin_get_instance_private (self);
 
+       g_return_val_if_fail (KA_IS_PLUGIN (self), NULL);
+       priv = ka_plugin_get_instance_private (self);
+
        return priv->name;
 }