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audio/hda: Fix migration

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Fix outgoing migration which was crashing in
vmstate_hda_audio_stream_buf_needed, I think the problem
is that we have room for upto 4 streams in the array but only
use 2, when we come to try and save the state of the unused
streams we hit st->state == NULL.

Fixes: 280c1e1cdb
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20180724102215.31866-1-dgilbert@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2018-07-24 11:22:15 +01:00
parent 57225e5f32
commit 67fa1f5700
1 changed files with 1 additions and 1 deletions
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hw/audio/hda-codec.c
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@ -786,7 +786,7 @@ static void hda_audio_reset(DeviceState *dev)
static bool vmstate_hda_audio_stream_buf_needed(void *opaque) static bool vmstate_hda_audio_stream_buf_needed(void *opaque)
{ {
HDAAudioStream *st = opaque; HDAAudioStream *st = opaque;
return st->state->use_timer; return st->state && st->state->use_timer;
} }
static const VMStateDescription vmstate_hda_audio_stream_buf = { static const VMStateDescription vmstate_hda_audio_stream_buf = {