This patch includes below fixes: 1. wm8904 need to be kfreed in wm8904_register() error path before return. 2. fix the error path for snd_soc_register_codec() fail and snd_soc_register_dai() fail to properly free resources.
Signed-off-by: Axel Lin axel.lin@gmail.com --- sound/soc/codecs/wm8904.c | 13 ++++++++----- 1 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index 87f14f8..f7dcabf 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -2433,7 +2433,8 @@ static int wm8904_register(struct wm8904_priv *wm8904,
if (wm8904_codec) { dev_err(codec->dev, "Another WM8904 is registered\n"); - return -EINVAL; + ret = -EINVAL; + goto err; }
mutex_init(&codec->mutex); @@ -2462,7 +2463,8 @@ static int wm8904_register(struct wm8904_priv *wm8904, default: dev_err(codec->dev, "Unknown device type %d\n", wm8904->devtype); - return -EINVAL; + ret = -EINVAL; + goto err; }
memcpy(codec->reg_cache, wm8904_reg, sizeof(wm8904_reg)); @@ -2566,18 +2568,19 @@ static int wm8904_register(struct wm8904_priv *wm8904, 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(&wm8904_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(wm8904->supplies), wm8904->supplies); err_get: