Author: hselasky
Date: Thu Oct 25 14:34:38 2018
New Revision: 339714
URL: https://svnweb.freebsd.org/changeset/base/339714

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

Modified:
  stable/11/sys/dev/sound/midi/sequencer.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/dev/sound/midi/sequencer.c
==============================================================================
--- stable/11/sys/dev/sound/midi/sequencer.c    Thu Oct 25 14:12:48 2018        
(r339713)
+++ stable/11/sys/dev/sound/midi/sequencer.c    Thu Oct 25 14:34:38 2018        
(r339714)
@@ -728,7 +728,7 @@ 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];
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