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From: Hans Petter Selasky <hselasky@FreeBSD.org>
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Subject: svn commit: r339715 - stable/10/sys/dev/sound/midi
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Author: hselasky
Date: Thu Oct 25 14:35:52 2018
New Revision: 339715
URL: https://svnweb.freebsd.org/changeset/base/339715

Log:
  MFC r339581:
  Fix off-by-one which can lead to panics.
  
  Found by:		Peter Holm <peter@holm.cc>
  Sponsored by:		Mellanox Technologies

Modified:
  stable/10/sys/dev/sound/midi/sequencer.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/dev/sound/midi/sequencer.c
==============================================================================
--- stable/10/sys/dev/sound/midi/sequencer.c	Thu Oct 25 14:34:38 2018	(r339714)
+++ stable/10/sys/dev/sound/midi/sequencer.c	Thu Oct 25 14:35:52 2018	(r339715)
@@ -737,7 +737,7 @@ static int
 seq_fetch_mid(struct seq_softc *scp, int unit, kobj_t *md)
 {
 
-	if (unit > scp->midi_number || unit < 0)
+	if (unit >= scp->midi_number || unit < 0)
 		return EINVAL;
 
 	*md = scp->midis[unit];