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-rw-r--r--hw/audio/hda-codec.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/audio/hda-codec.c b/hw/audio/hda-codec.c
index 870448a687..ac67b9aada 100644
--- a/hw/audio/hda-codec.c
+++ b/hw/audio/hda-codec.c
@@ -325,6 +325,15 @@ static void hda_audio_output_cb(void *opaque, int avail)
int64_t to_transfer = audio_MIN(wpos - rpos, avail);
+ if (wpos - rpos == B_SIZE) {
+ /* drop buffer, reset timer adjust */
+ st->rpos = 0;
+ st->wpos = 0;
+ st->buft_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
+ trace_hda_audio_overrun(st->node->name);
+ return;
+ }
+
hda_timer_sync_adjust(st, (wpos - rpos) - to_transfer - (B_SIZE >> 1));
while (to_transfer) {