linux-kernel - [PATCH] ASoC: Hold client_mutex while calling snd_soc_instantiate

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Date:	Mon, 06 Dec 2010 16:48:03 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	Liam Girdwood <lrg@...mlogic.co.uk>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	alsa-devel@...a-project.org
Subject: [PATCH] ASoC: Hold client_mutex while calling
	snd_soc_instantiate_cards()

As the comments of snd_soc_instantiate_cards() said,
snd_soc_instantiate_cards() must be called with client_mutex.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 sound/soc/soc-core.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index eb950f7..0d69b91 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3299,7 +3299,9 @@ int snd_soc_register_dais(struct device *dev,
 		pr_debug("Registered DAI '%s'\n", dai->name);
 	}
 
+	mutex_lock(&client_mutex);
 	snd_soc_instantiate_cards();
+	mutex_unlock(&client_mutex);
 	return 0;
 
 err:
-- 
1.7.2



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