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| author | Takashi Iwai <tiwai@suse.de> | 2007-01-26 12:40:31 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-01-29 14:32:53 -0800 |
| commit | 7d2aae1e88660cf09be913e9754e45189dc33412 (patch) | |
| tree | af56ebcced14fb8e40640d9555129aab2ffa0532 /sound/core/sound.c | |
| parent | 5263bf65d6342e12ab716db8e529501670979321 (diff) | |
| download | linux-7d2aae1e88660cf09be913e9754e45189dc33412.tar.bz2 | |
[PATCH] ALSA: Fix sysfs breakage
The recent change for a new sysfs tree with card* object breaks the
/sys/class/sound tree if CONFIG_SYSFS_DEPRECATED is enabled.
The device in each entry doesn't point the correct device object:
/sys/class/sound
...
|-- pcmC0D0c
| |-- dev
| |-- device -> ../../../class/sound/card0
| |-- pcm_class
| |-- power
| | `-- wakeup
| |-- subsystem -> ../../../class/sound
| `-- uevent
Also, this change breaks some drivers (like sound/arm/*) referring
card->dev directly to obtain the device object for memory handling.
This patch reverts the semantics of card->dev to the former version,
which points to a real device object. The card* object is stored in a
new card->card_dev field, instead. The device parent is chosen either
card->dev or card->card_dev according to CONFIG_SYSFS_DEPRECATED to
keep the tree compatibility.
Also, card* isn't created if CONFIG_SYSFS_DEPRECATED is enabled. The
reason of card* object is a root of all beloing devices, and it makes
little sense if each sound device points to the real device object
directly.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Monty Montgomery <xiphmont@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'sound/core/sound.c')
| -rw-r--r-- | sound/core/sound.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/sound/core/sound.c b/sound/core/sound.c index 282742022de6..82a61c67cf3a 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -238,7 +238,7 @@ int snd_register_device(int type, struct snd_card *card, int dev, { int minor; struct snd_minor *preg; - struct device *device = NULL; + struct device *device = snd_card_get_device_link(card); snd_assert(name, return -EINVAL); preg = kmalloc(sizeof *preg, GFP_KERNEL); @@ -263,8 +263,6 @@ int snd_register_device(int type, struct snd_card *card, int dev, return minor; } snd_minors[minor] = preg; - if (card) - device = card->dev; preg->dev = device_create(sound_class, device, MKDEV(major, minor), "%s", name); if (preg->dev) |