[Stable-9.1.2 58/58] Revert "hw/audio/hda: fix memory leak on audio setup"

[Michael Tokarev]

This reverts commit 6d03242a7e47815ed56687ecd13f683d8da3f2fe.

Let's revert this one for now.  It is a revert of a commit picked
to 9.1.x from master 6d6e23361fc732e4fe36a8bc5873b85f264ed53a,
restoring the status quo with audio for now.

See https://gitlab.com/qemu-project/qemu/-/issues/2639 for details.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

diff --git a/hw/audio/hda-codec.c b/hw/audio/hda-codec.c
index 4373565371..ee3d0a7dec 100644
--- a/hw/audio/hda-codec.c
+++ b/hw/audio/hda-codec.c
@@ -472,24 +472,6 @@ static void hda_audio_set_amp(HDAAudioStream *st)
     }
 }
 
-static void hda_close_stream(HDAAudioState *a, HDAAudioStream *st)
-{
-    if (st->node == NULL) {
-        return;
-    }
-    if (a->use_timer) {
-        timer_free(st->buft);
-        st->buft = NULL;
-    }
-    if (st->output) {
-        AUD_close_out(&a->card, st->voice.out);
-        st->voice.out = NULL;
-    } else {
-        AUD_close_in(&a->card, st->voice.in);
-        st->voice.in = NULL;
-    }
-}
-
 static void hda_audio_setup(HDAAudioStream *st)
 {
     bool use_timer = st->state->use_timer;
@@ -502,7 +484,6 @@ static void hda_audio_setup(HDAAudioStream *st)
     trace_hda_audio_format(st->node->name, st->as.nchannels,
                            fmt2name[st->as.fmt], st->as.freq);
 
-    hda_close_stream(st->state, st);
     if (st->output) {
         if (use_timer) {
             cb = hda_audio_output_cb;
@@ -760,11 +741,23 @@ static void hda_audio_init(HDACodecDevice *hda,
 static void hda_audio_exit(HDACodecDevice *hda)
 {
     HDAAudioState *a = HDA_AUDIO(hda);
+    HDAAudioStream *st;
     int i;
 
     dprint(a, 1, "%s\n", __func__);
     for (i = 0; i < ARRAY_SIZE(a->st); i++) {
-        hda_close_stream(a, a->st + i);
+        st = a->st + i;
+        if (st->node == NULL) {
+            continue;
+        }
+        if (a->use_timer) {
+            timer_free(st->buft);
+        }
+        if (st->output) {
+            AUD_close_out(&a->card, st->voice.out);
+        } else {
+            AUD_close_in(&a->card, st->voice.in);
+        }
     }
     AUD_remove_card(&a->card);
 }
-- 
2.39.5