From c7b8170790c19293acd835dc50b8247ec207d4a3 Mon Sep 17 00:00:00 2001 From: Lihua Yao Date: Wed, 15 Aug 2018 20:59:46 +0800 Subject: ALSA: ac97: fix device initialization in the compat layer ac97->dev is an object of 'struct device' type. It should be initialized via device_initialize() or device_register(). Fixes: 74426fbff66e ("ALSA: ac97: add an ac97 bus") Signed-off-by: Lihua Yao Tested-by: Robert Jarzmik Acked-by: Robert Jarzmik Cc: Signed-off-by: Takashi Iwai --- sound/ac97/snd_ac97_compat.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) (limited to 'sound/ac97') diff --git a/sound/ac97/snd_ac97_compat.c b/sound/ac97/snd_ac97_compat.c index 61544e0d8de4..8bab44f74bb8 100644 --- a/sound/ac97/snd_ac97_compat.c +++ b/sound/ac97/snd_ac97_compat.c @@ -15,6 +15,11 @@ #include "ac97_core.h" +static void compat_ac97_release(struct device *dev) +{ + kfree(to_ac97_t(dev)); +} + static void compat_ac97_reset(struct snd_ac97 *ac97) { struct ac97_codec_device *adev = to_ac97_device(ac97->private_data); @@ -65,21 +70,31 @@ static struct snd_ac97_bus compat_soc_ac97_bus = { struct snd_ac97 *snd_ac97_compat_alloc(struct ac97_codec_device *adev) { struct snd_ac97 *ac97; + int ret; ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); if (ac97 == NULL) return ERR_PTR(-ENOMEM); - ac97->dev = adev->dev; ac97->private_data = adev; ac97->bus = &compat_soc_ac97_bus; + + ac97->dev.parent = &adev->dev; + ac97->dev.release = compat_ac97_release; + dev_set_name(&ac97->dev, "%s-compat", dev_name(&adev->dev)); + ret = device_register(&ac97->dev); + if (ret) { + put_device(&ac97->dev); + return ERR_PTR(ret); + } + return ac97; } EXPORT_SYMBOL_GPL(snd_ac97_compat_alloc); void snd_ac97_compat_release(struct snd_ac97 *ac97) { - kfree(ac97); + device_unregister(&ac97->dev); } EXPORT_SYMBOL_GPL(snd_ac97_compat_release); -- cgit v1.2.3