[libgnome-volume-control/wip/muktupavels/warnings] fix cast-function-type warnings

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 4e9205d6f39ea2d492717fa2c6db4c2b142fb4e6
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sat Sep 8 23:58:21 2018 +0300

    fix cast-function-type warnings
    
    gvc-mixer-card.c: In function ‘gvc_mixer_card_finalize’:
    gvc-mixer-card.c:571:53: warning: cast between incompatible function types from ‘void 
(*)(GvcMixerCardProfile *)’ {aka ‘void (*)(struct <anonymous> *)’} to ‘void (*)(void *, void *)’ 
[-Wcast-function-type]
             g_list_foreach (mixer_card->priv->profiles, (GFunc) free_profile, NULL);
    
    gvc-mixer-stream.c: In function ‘gvc_mixer_stream_finalize’:
    gvc-mixer-stream.c:1044:52: warning: cast between incompatible function types from ‘void 
(*)(GvcMixerStreamPort *)’ {aka ‘void (*)(struct <anonymous> *)’} to ‘void (*)(void *, void *)’ 
[-Wcast-function-type]
             g_list_foreach (mixer_stream->priv->ports, (GFunc) free_port, NULL);

 gvc-mixer-card.c   | 3 +--
 gvc-mixer-stream.c | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/gvc-mixer-card.c b/gvc-mixer-card.c
index ba31ab2..0856493 100644
--- a/gvc-mixer-card.c
+++ b/gvc-mixer-card.c
@@ -564,8 +564,7 @@ gvc_mixer_card_finalize (GObject *object)
         g_free (mixer_card->priv->human_profile);
         mixer_card->priv->human_profile = NULL;
 
-        g_list_foreach (mixer_card->priv->profiles, (GFunc) free_profile, NULL);
-        g_list_free (mixer_card->priv->profiles);
+        g_list_free_full (mixer_card->priv->profiles, (GDestroyNotify) free_profile);
         mixer_card->priv->profiles = NULL;
 
         g_list_free_full (mixer_card->priv->ports, (GDestroyNotify) free_port);
diff --git a/gvc-mixer-stream.c b/gvc-mixer-stream.c
index 5de71d1..b136a14 100644
--- a/gvc-mixer-stream.c
+++ b/gvc-mixer-stream.c
@@ -1038,8 +1038,7 @@ gvc_mixer_stream_finalize (GObject *object)
         g_free (mixer_stream->priv->human_port);
         mixer_stream->priv->human_port = NULL;
 
-        g_list_foreach (mixer_stream->priv->ports, (GFunc) free_port, NULL);
-        g_list_free (mixer_stream->priv->ports);
+        g_list_free_full (mixer_stream->priv->ports, (GDestroyNotify) free_port);
         mixer_stream->priv->ports = NULL;
 
        if (mixer_stream->priv->change_volume_op) {