ALSA: seq: oss: Fix unbalanced use lock for synth MIDI device

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commit f5e94b4c6e upstream.

When get_synthdev() is called for a MIDI device, it returns the fixed
midi_synth_dev without the use refcounting.  OTOH, the caller is
supposed to unreference unconditionally after the usage, so this would
lead to unbalanced refcount.

This patch corrects the behavior and keep up the refcount balance also
for the MIDI synth device.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Takashi Iwai 2018-04-24 07:26:59 +02:00 • committed by Greg Kroah-Hartman

parent 30ddc329d5

commit 4a52a21272

1 changed files with 8 additions and 4 deletions

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sound/core/seq/oss/seq_oss_synth.c

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