Avoid traversing the device object list of the card instance just for
checking the PCM streams.  The driver's private object already
contains the array of substream pointers, so it can be simply looked
through.  The card internal may be restructured in future, thus better
not to rely on it.

Also, this fixes the possible deadlocks in PCM mutex.  Instead of
taking multiple PCM mutexes, just take the common mutex in all
places.  Along with it, rename prepare_mutex as pcm_mutex.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Some codec drivers still have it since using PCI_VENDOR_ID_*.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Realtek codec driver contains some codes referring to the PCI
subdevice IDs, but most of them are optional, typically for checking
the codec name variants.  Add NULL checks appropriately so that it can
work without PCI assignment.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

The default parent device can be obtained directly via card object, so
we don't need to rely on pci->dev.parent.  Since there is no access to
pci_dev, we can reduce the inclusion of linux/pci.h, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Function del_timer() does not guarantee that timer was really deleted.
If the timer handler is beeing executed at the moment, the function
does nothing. So, it's possible to use already freed memory in the handler:

[ref: Documentation/DocBook/kernel-locking.tmpl]

This was found using grep and compile-tested only.
Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Using __bitwise and typedefs for the attributes of snd_device struct
isn't so useful, and rather it worsens the readability.  Let's drop
them and use the straightforward enum.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

... instead of SNDRV_DEV_LOWLEVEL.
No functional change at this point.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

... instead of SNDRV_DEV_LOWLEVEL.
No functional change at this point.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Instead of SNDRV_DEV_LOWLEVEL, use SNDRV_DEV_CODEC type for mixer
objects so that they are managed in a proper release order.
No functional change at this point.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Use the standard pr_xxx() helpers instead of home-baked snd_print*().
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Use the standard pr_xxx() helpers instead of home-baked snd_print*().
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Use the standard pr_xxx() helpers instead of home-baked snd_print*().
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Use dev_err() & co as much as possible.  If not available (no device
assigned at the calling point), use pr_xxx() helpers instead.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Use dev_err() & co as much as possible.  If not available (no device
assigned at the calling point), use pr_xxx() helpers instead.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Use dev_err() & co as much as possible.  If not available (no device
assigned at the calling point), use pr_xxx() helpers instead.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Use dev_err() & co as much as possible.  If not available (no device
assigned at the calling point), use pr_xxx() helpers instead.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Use dev_err() & co as much as possible.  If not available (no device
assigned at the calling point), use pr_xxx() helpers instead.

For simplicity, introduce new helpers for pcm stream, pcm_err(), etc.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Use dev_err() & co as much as possible.  If not available (no device
assigned at the calling point), use pr_xxx() helpers instead.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

The debug prints in snd-seq-oss module are rather useless.
Let's clean up before further modifications.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Drop the own refcount but use the standard device refcounting via
get_device() and put_device().  Introduce a new completion to snd_card
instead of the wait queue for syncing the last release, which is used
in snd_card_free().
Signed-off-by: Takashi Iwai <tiwai@suse.de>

... instead of calling device_create_file() manually.
No functional change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

As prepared in the previous patch, we are ready to create a device
struct for the card object in snd_card_create() now.  This patch
changes the scheme from the old style to:

- embed a device struct for the card object into snd_card struct,
- initialize the card device in snd_card_create() (but not register),
- registration is done in snd_card_register() via device_add()

The actual card device is stored in card->card_dev.  The card->dev
pointer is kept unchanged and pointing to the parent device as before
for compatibility reason.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous card->dev assignment.
Reviewed-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Make sound/mips/au1x00.c a proper platform_driver.

[minor coding style fixes, cleanup and forward-ported by tiwai]

Cc: Charles Eidsness <charles@cooper-street.com>
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Also remove superfluous snd_card_set_dev() calls.
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>