linux-kernel - [PATCH 0/2] ASoC: hdmi-codec: fix locking issue

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Message-Id: <20191023161203.28955-1-jbrunet@baylibre.com>
Date:   Wed, 23 Oct 2019 18:12:01 +0200
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>
Cc:     Jerome Brunet <jbrunet@...libre.com>, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org,
        Russell King <rmk+kernel@...linux.org.uk>
Subject: [PATCH 0/2] ASoC: hdmi-codec: fix locking issue

This patchset fixes the locking issue reported by Russell.

As explained a mutex was used as flag and held while returning to
userspace.

Patch 2 is entirely optional and switches from bit atomic operation
to mutex again. I tend to prefer bit atomic operation in this
particular case but either way should be fine.

Jerome Brunet (2):
  Revert "ASoC: hdmi-codec: re-introduce mutex locking"
  ASoC: hdmi-codec: re-introduce mutex locking again

 sound/soc/codecs/hdmi-codec.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

-- 
2.21.0