linux-kernel - [PATCH v2 01/12] ad1836: fix a memory leak if another ad1836 is registered

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Message-Id: <1279864434-8010-2-git-send-email-axel.lin@gmail.com>
Date:	Fri, 23 Jul 2010 05:53:43 +0000
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	Barry Song <21cnbao@...il.com>,
	Kuninori Morimoto <morimoto.kuninori@...esas.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Mike Arthur <linux@...fsonmicro.com>,
	Guennadi Liakhovetski <g.liakhovetski@....de>,
	Liam Girdwood <lrg@...mlogic.co.uk>
Subject: [PATCH v2 01/12] ad1836: fix a memory leak if another ad1836 is registered

ad1836 is allocated in ad1836_spi_probe() but is not freed if ad1836_register()
return -EINVAL (if another ad1836 is registered).

Signed-off-by: Axel Lin <axel.lin@...il.com>
Acked-by: Barry Song <21cnbao@...il.com>
---
 sound/soc/codecs/ad1836.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/sound/soc/codecs/ad1836.c b/sound/soc/codecs/ad1836.c
index 2175384..a01006c 100644
--- a/sound/soc/codecs/ad1836.c
+++ b/sound/soc/codecs/ad1836.c
@@ -272,6 +272,7 @@ static int ad1836_register(struct ad1836_priv *ad1836)
 
 	if (ad1836_codec) {
 		dev_err(codec->dev, "Another ad1836 is registered\n");
+		kfree(ad1836);
 		return -EINVAL;
 	}
 
-- 
1.7.0.4

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