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Assert that the we never give a thread a NULL turnstile when waking it up.

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jhb 2003-12-09 21:09:54 +00:00
parent 66cc89fadf
commit f110a9ab64
1 changed files with 2 additions and 0 deletions
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2
sys/kern/subr_turnstile.c
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@ -561,6 +561,7 @@ turnstile_signal(struct turnstile *ts)
MPASS(LIST_EMPTY(&ts->ts_free));
else
ts = LIST_FIRST(&ts->ts_free);
MPASS(ts != NULL);
LIST_REMOVE(ts, ts_hash);
td->td_turnstile = ts;
@ -601,6 +602,7 @@ turnstile_wakeup(struct turnstile *ts)
ts1 = ts;
} else
ts1 = LIST_FIRST(&ts->ts_free);
MPASS(ts1 != NULL);
LIST_REMOVE(ts1, ts_hash);
td->td_turnstile = ts1;
}