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alsa: handle excessive delay values gracefully

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When we read an excessively large delay value, clamp it to twice the
delay so that we don't set our timeout to something too far in the
future.
This commit is contained in:
Wim Taymans 2021-08-31 12:38:18 +02:00
parent 3300f5ddc4
commit 71055dce73
1 changed files with 3 additions and 1 deletions
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4
spa/plugins/alsa/alsa-pcm.c
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@ -1626,7 +1626,9 @@ static int handle_play(struct state *state, uint64_t nsec,
int res;
if (SPA_UNLIKELY(delay > target + state->max_error)) {
spa_log_trace(state->log, NAME" %p: early wakeup %ld %ld", state, delay, target);
spa_log_trace(state->log, NAME" %p: early wakeup %lu %lu", state, delay, target);
if (delay > target * 3)
delay = target * 3;
state->next_time = nsec + (delay - target) * SPA_NSEC_PER_SEC / state->rate;
return -EAGAIN;
}