From ef99e9b5a10086bcc529e6c0a11c6539caee8cd1 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 23 Jul 2010 05:53:46 +0000 Subject: [PATCH] ASoC: wm8523: fix resource reclaim in wm8523_register error path This patch includes below fixes: 1. If another WM8523 is registered, need to kfree wm8523 before return -EINVAL. 2. If snd_soc_register_codec failed, goto error path to properly free resources. 3. Instead of using mixed in-line and goto style cleanup, use goto style error handling if snd_soc_register_dai failed. Signed-off-by: Axel Lin Acked-by: Liam Girdwood Signed-off-by: Mark Brown --- sound/soc/codecs/wm8523.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/sound/soc/codecs/wm8523.c b/sound/soc/codecs/wm8523.c index 37242a7d3077..0ad039b4adf5 100644 --- a/sound/soc/codecs/wm8523.c +++ b/sound/soc/codecs/wm8523.c @@ -482,7 +482,8 @@ static int wm8523_register(struct wm8523_priv *wm8523, if (wm8523_codec) { dev_err(codec->dev, "Another WM8523 is registered\n"); - return -EINVAL; + ret = -EINVAL; + goto err; } mutex_init(&codec->mutex); @@ -570,18 +571,19 @@ static int wm8523_register(struct wm8523_priv *wm8523, 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(&wm8523_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(wm8523->supplies), wm8523->supplies); err_get: -- 2.20.1