linux-kernel - [PATCH] ASoC: sta32x: Move resource allocation and release to the corresponding callback functions

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Message-ID: <1313652664.2917.3.camel@phoenix>
Date:	Thu, 18 Aug 2011 15:31:04 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Liam Girdwood <lrg@...com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Johannes Stezenbach <js@...21.net>, alsa-devel@...a-project.org
Subject: [PATCH] ASoC: sta32x: Move resource allocation and release to the
 corresponding callback functions

This patch includes below small fixes:

1. Move sta32x_set_bias_level() from sta32x_i2c_remove() to sta32x_remove().
2. Remove a redundant regulator_bulk_free() call in sta32x_i2c_remove(),
   as we will call regulator_bulk_free() in sta32x_remove().
3. Remove unneeded snd_soc_codec_set_drvdata(codec, NULL) in sta32x_i2c_remove.
   The i2c core will set the clientdata to NULL.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
hi,
I don't have this hardware handy. I appreciate if someone can test this patch.

Axel
 sound/soc/codecs/sta32x.c |   13 ++-----------
 1 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c
index 3d155f5..5c7def3 100644
--- a/sound/soc/codecs/sta32x.c
+++ b/sound/soc/codecs/sta32x.c
@@ -812,6 +812,7 @@ static int sta32x_remove(struct snd_soc_codec *codec)
 {
 	struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
 
+	sta32x_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	regulator_bulk_disable(ARRAY_SIZE(sta32x->supplies), sta32x->supplies);
 	regulator_bulk_free(ARRAY_SIZE(sta32x->supplies), sta32x->supplies);
 
@@ -871,18 +872,8 @@ static __devinit int sta32x_i2c_probe(struct i2c_client *i2c,
 static __devexit int sta32x_i2c_remove(struct i2c_client *client)
 {
 	struct sta32x_priv *sta32x = i2c_get_clientdata(client);
-	struct snd_soc_codec *codec = sta32x->codec;
-
-	if (codec)
-		sta32x_set_bias_level(codec, SND_SOC_BIAS_OFF);
-
-	regulator_bulk_free(ARRAY_SIZE(sta32x->supplies), sta32x->supplies);
-
-	if (codec) {
-		snd_soc_unregister_codec(&client->dev);
-		snd_soc_codec_set_drvdata(codec, NULL);
-	}
 
+	snd_soc_unregister_codec(&client->dev);
 	kfree(sta32x);
 	return 0;
 }
-- 
1.7.4.1



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