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Sanity check hi/lo water mark settings better.

This commit is contained in:
augustss 1997-10-07 22:40:43 +00:00
parent 38b2ba3e3f
commit 4f2068ec29
1 changed files with 7 additions and 3 deletions
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10
sys/dev/audio.c
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@ -1,4 +1,4 @@
/* $NetBSD: audio.c,v 1.71 1997/09/06 01:14:48 augustss Exp $ */
/* $NetBSD: audio.c,v 1.72 1997/10/07 22:40:43 augustss Exp $ */
/*
* Copyright (c) 1991-1993 Regents of the University of California.
@ -2154,8 +2154,8 @@ audiosetinfo(sc, ai)
blks = ai->hiwat;
if (blks > sc->sc_pr.maxblks)
blks = sc->sc_pr.maxblks;
if (blks < 1)
blks = 1;
if (blks < 2)
blks = 2;
sc->sc_pr.usedhigh = blks * sc->sc_pr.blksize;
}
if (ai->lowat != ~0) {
@ -2164,6 +2164,10 @@ audiosetinfo(sc, ai)
blks = sc->sc_pr.maxblks - 1;
sc->sc_pr.usedlow = blks * sc->sc_pr.blksize;
}
if (ai->hiwat != ~0 || ai->lowat != ~0) {
if (sc->sc_pr.usedlow > sc->sc_pr.usedhigh - sc->sc_pr.blksize)
sc->sc_pr.usedlow = sc->sc_pr.usedhigh - sc->sc_pr.blksize;
}
return (0);
}