audio/hda: Fix migration
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>
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@ -786,7 +786,7 @@ static void hda_audio_reset(DeviceState *dev)
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static bool vmstate_hda_audio_stream_buf_needed(void *opaque)
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{
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HDAAudioStream *st = opaque;
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return st->state->use_timer;
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return st->state && st->state->use_timer;
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}
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static const VMStateDescription vmstate_hda_audio_stream_buf = {
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