Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Unlock mutex before jumping off from the critical region instead of 

testing if locked.
This commit is contained in:
enami 2000-11-21 03:53:27 +00:00
parent 6bc7e18094
commit 29f1bcd8e2
1 changed files with 2 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sys/kern/tty_pty.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: tty_pty.c,v 1.53 2000/11/20 06:36:02 veego Exp $ */ /* $NetBSD: tty_pty.c,v 1.54 2000/11/21 03:53:27 enami Exp $ */
/* /*
* Copyright (c) 1982, 1986, 1989, 1993 * Copyright (c) 1982, 1986, 1989, 1993
@ -135,10 +135,6 @@ check_pty(dev)
if (minor(dev) >= maxptys) { if (minor(dev) >= maxptys) {
limit_reached: limit_reached:
tablefull("pty", "increase kern.maxptys"); tablefull("pty", "increase kern.maxptys");
#if defined(LOCKDEBUG)
if (simple_lock_held(&pt_softc_mutex))
#endif
simple_unlock(&pt_softc_mutex);
return (ENXIO); return (ENXIO);
} }
@ -162,7 +158,7 @@ check_pty(dev)
simple_lock(&pt_softc_mutex); simple_lock(&pt_softc_mutex);
if (maxptys == npty) { if (maxptys == npty) {
/* we hold the mutex here */ simple_unlock(&pt_softc_mutex);
goto limit_reached; goto limit_reached;
} }
} while(newnpty > maxptys); } while(newnpty > maxptys);