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Do not lock the pgrpsess_lock exclusively across ttywait().

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Spotted by:		David Wolfskill <david@catwhisker.org>
Investigated by:	rwatson
This commit is contained in:
tanimura 2002-03-11 07:51:08 +00:00
parent a16c1fce78
commit b9e49bfcc9
1 changed files with 2 additions and 0 deletions
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2
sys/kern/kern_exit.c
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@ -251,7 +251,9 @@ exit1(td, rv)
PGRP_UNLOCK(sp->s_ttyp->t_pgrp);
}
/* XXX tp should be locked. */
PGRPSESS_XUNLOCK();
(void) ttywait(tp);
PGRPSESS_XLOCK();
/*
* The tty could have been revoked
* if we blocked.