From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 25 Jan 2016 10:01:47 +0000 (+0100)
Subject: ALSA: seq: Fix incorrect sanity check at snd_seq_oss_synth_cleanup()
X-Git-Tag: v3.2.78~53
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fd691a7b0dac25caf6a9ec69934c5b662735ab54;p=pandora-kernel.git

ALSA: seq: Fix incorrect sanity check at snd_seq_oss_synth_cleanup()

commit 599151336638d57b98d92338aa59c048e3a3e97d upstream.

ALSA sequencer OSS emulation code has a sanity check for currently
opened devices, but there is a thinko there, eventually it spews
warnings and skips the operation wrongly like:
  WARNING: CPU: 1 PID: 7573 at sound/core/seq/oss/seq_oss_synth.c:311

Fix this off-by-one error.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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