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Simplify the "and if we're in the debugger, don't use locks" logic,

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correcting some misthinking.

Discussed with (really this time):	bde
This commit is contained in:
Robert Watson 2005-02-08 17:56:04 +00:00
parent 83f15706ef
commit 78e21ab011
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=141530
1 changed files with 5 additions and 9 deletions
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14
sys/dev/sio/sio.c
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@ -2583,20 +2583,16 @@ siocnputc(struct consdev *cd, int c)
}
s = spltty();
need_unlock = 0;
if (!kdb_active) {
if (sio_inited == 2 && !mtx_owned(&sio_lock)) {
mtx_lock_spin(&sio_lock);
need_unlock = 1;
}
if (!kdb_active && sio_inited == 2 && !mtx_owned(&sio_lock)) {
mtx_lock_spin(&sio_lock);
need_unlock = 1;
}
siocnopen(&sp, iobase, speed);
siocntxwait(iobase);
outb(iobase + com_data, c);
siocnclose(&sp, iobase);
if (!kdb_active) {
if (need_unlock)
mtx_unlock_spin(&sio_lock);
}
if (need_unlock)
mtx_unlock_spin(&sio_lock);
splx(s);
}