linux-kernel - [PATCH v2 08/12] wm8955: fix resource reclaim in wm8955

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Date:	Fri, 23 Jul 2010 05:53:50 +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 08/12] wm8955: fix resource reclaim in wm8955_register error path

This patch fixes the error path in wm8955_register to properly free resources.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 sound/soc/codecs/wm8955.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/wm8955.c b/sound/soc/codecs/wm8955.c
index fedb764..5f02559 100644
--- a/sound/soc/codecs/wm8955.c
+++ b/sound/soc/codecs/wm8955.c
@@ -964,7 +964,8 @@ static int wm8955_register(struct wm8955_priv *wm8955,
 
 	if (wm8955_codec) {
 		dev_err(codec->dev, "Another WM8955 is registered\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err;
 	}
 
 	mutex_init(&codec->mutex);
@@ -1047,18 +1048,19 @@ static int wm8955_register(struct wm8955_priv *wm8955,
 	ret = snd_soc_register_codec(codec);
 	if (ret != 0) {
 		dev_err(codec->dev, "Failed to register codec: %d\n", ret);
-		return ret;
+		goto err_enable;
 	}
 
 	ret = snd_soc_register_dai(&wm8955_dai);
 	if (ret != 0) {
 		dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
-		snd_soc_unregister_codec(codec);
-		return ret;
+		goto err_codec;
 	}
 
 	return 0;
 
+err_codec:
+	snd_soc_unregister_codec(codec);
 err_enable:
 	regulator_bulk_disable(ARRAY_SIZE(wm8955->supplies), wm8955->supplies);
 err_get:
-- 
1.7.0.4

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