Commit Graph

461 Commits

Author SHA1 Message Date
Liam Girdwood
ae10e7e8f1 ASoC: core: Only add platform DAI widgets once.
Currently platform CPU DAI widgets are created in soc_probe_platform and
soc_probe_link_dais. Remove the extra call in soc_probe_link_dais().

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-13 18:27:51 +01:00
Mark Brown
c79c33af8f Merge remote-tracking branch 'asoc/topic/core' into tmp 2013-08-30 11:04:14 +01:00
Lars-Peter Clausen
824ef826f3 ASoC: Pass card instead of dapm context to snd_soc_dapm_new_widgets()
snd_soc_dapm_new_widgets() works on the ASoC card as a whole not on a specific
DAPM context. The DAPM context that is passed as the parameter is only used to
look up the pointer to the card. This patch updates the signature of
snd_soc_dapm_new_widgets() to take the card directly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-27 15:41:16 +01:00
Mark Brown
dc1632321b Merge remote-tracking branch 'asoc/topic/dmic' into asoc-core 2013-08-27 15:40:03 +01:00
Lars-Peter Clausen
8c193b8dce ASoC: Move call to snd_soc_dapm_new_widgets() after snd_soc_dapm_auto_nc_codec_pins()
Call snd_soc_dapm_new_widgets() before the auto non-connected pins have been
marked as not connected will power the system under the assumption that those
pins are connected. Once the pins have been marked as disconnected the system
there will be an additional power run. This can cause unnecessary power
transitions. Calling snd_soc_dapm_new_widgets() only after the pins have been
marked as non-connected avoids this.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-27 15:39:43 +01:00
Lars-Peter Clausen
4b52fa211a ASoC: Call snd_soc_dapm_new_widgets() only once during card initialization
Each time snd_soc_dapm_new_widgets() is called it will instantiate all the
widgets and routes that have been added so far and then power them. Doing this
multiple times before the card is fully initialized and all widgets have been
added can cause unnecessary and even invalid power state transitions which can
result in extra register writes and and also might cause clicks and pops.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-27 15:38:18 +01:00
Takashi Iwai
68538bf2bc ASoC: Updates for v3.12
- DAPM is now mandatory for CODEC drivers in order to avoid the repeated
   regressions in the special cases for non-DAPM CODECs and make it
   easier to integrate with other components on boards.  All existing
   drivers have had some level of DAPM support added.
 - A lot of cleanups in DAPM plus support for maintaining controls in a
   specific state while a DAPM widget all contributed by Lars-Peter Clausen.
 - Core helpers for bitbanged AC'97 reset from Markus Pargmann.
 - New drivers and support for Analog Devices ADAU1702 and ADAU1401(a),
   Asahi Kasei Microdevices AK4554, Atmel AT91ASM9x5 and WM8904 based
   machines, Freescale S/PDIF and SSI AC'97, Renesas R-Car SoCs, Samsung
   Exynos5420 SoCs, Texas Instruments PCM1681 and PCM1792A and Wolfson
   Microelectronics WM8997.
 - Support for building drivers that can support it cross-platform for
   compile test.
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Merge tag 'asoc-v3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v3.12

- DAPM is now mandatory for CODEC drivers in order to avoid the repeated
  regressions in the special cases for non-DAPM CODECs and make it
  easier to integrate with other components on boards.  All existing
  drivers have had some level of DAPM support added.
- A lot of cleanups in DAPM plus support for maintaining controls in a
  specific state while a DAPM widget all contributed by Lars-Peter Clausen.
- Core helpers for bitbanged AC'97 reset from Markus Pargmann.
- New drivers and support for Analog Devices ADAU1702 and ADAU1401(a),
  Asahi Kasei Microdevices AK4554, Atmel AT91ASM9x5 and WM8904 based
  machines, Freescale S/PDIF and SSI AC'97, Renesas R-Car SoCs, Samsung
  Exynos5420 SoCs, Texas Instruments PCM1681 and PCM1792A and Wolfson
  Microelectronics WM8997.
- Support for building drivers that can support it cross-platform for
  compile test.
2013-08-23 14:12:22 +02:00
Mark Brown
8157567013 Merge remote-tracking branch 'asoc/topic/core' into asoc-next 2013-08-22 14:28:31 +01:00
Mark Brown
6234eabf84 Merge remote-tracking branch 'asoc/topic/adsp' into asoc-next 2013-08-22 14:28:25 +01:00
Markus Pargmann
741a509f34 ASoC: core: Generic ac97 link reset functions
This patch adds generic ac97 reset functions using pincontrol and gpio
parsed from devicetree.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-20 11:02:00 +01:00
Lars-Peter Clausen
9a953e6f27 ASoC: Use snd_soc_info_enum_double() for SOC_ENUM_EXT controls
snd_soc_info_enum_ext() and snd_soc_info_enum_double() are almost identical. The
only difference is that snd_soc_info_enum_double() is also able to handle stereo
controls. Using snd_soc_info_enum double() instead of snd_soc_info_enum_ext()
for the SOC_ENUM_EXT control's info callback allows us to remove
snd_soc_info_enum_ext().

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-11 12:00:27 +01:00
Lars-Peter Clausen
c77f872e66 ASoC: Remove unused snd_soc_info_volsw_ext()
The SOC_SINGLE_EXT control has been using snd_soc_info_volsw() for its info
callback since commit 1c433fb ("[ALSA] soc - 0.13 ASoC headers"). The
snd_soc_info_volsw_ext() function has been unused ever since then, so remove it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-11 12:00:26 +01:00
Lars-Peter Clausen
34d2f1b6fe ASoC: Remove unused soc_pm_waitq
The soc_pm_waitq waitqueue has been around as long as the ASoC framework
existed, but has never been used so far, so remove it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-10 12:12:57 +01:00
Richard Fitzgerald
9d58a07746 ASoC: core: init delayed_work for codec-codec links
We must init the delayed_work for codec-codec links
otherwise shutting down the DAI chain will fault when
calling flush_delayed_work_sync() on the linked DAI.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-05 17:07:57 +01:00
Dimitris Papastamos
4fefd69853 ASoC: core: Add snd_soc_card_get_kcontrol()
This is useful for drivers who want to grab a pointer to
snd_kcontrol outside of the kcontrol callbacks.

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-29 15:39:11 +01:00
Dan Carpenter
b5c745fb75 ASoC: core: double free in snd_soc_add_platform()
There are three callers for this function, and none of them want it to
free platform for them.  It leads to a double free.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-22 11:00:05 +01:00
Jingoo Han
b785a492c6 ALSA: replace strict_strto*() with kstrto*()
The usage of strict_strto*() is not preferred, because
strict_strto*() is obsolete. Thus, kstrto*() should be
used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-07-21 11:56:18 +02:00
Takashi Iwai
ef866ac0c2 ASoC: Final updates for v3.11
A few final updates:
 
  - A couple of additional bug fixes for the AC'97 refactoring.
  - Some fixes for the ADAU1701 driver.
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Merge tag 'asoc-v3.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Final updates for v3.11

A few final updates:

 - A couple of additional bug fixes for the AC'97 refactoring.
 - Some fixes for the ADAU1701 driver.
2013-07-01 11:23:13 +02:00
Kevin Hilman
f74b5e253a ASoC: ac97: fixup multi-platform AC'97 module build failure
commit b047e1cc (ASoC: ac97: Support multi-platform AC'97) introduced
some build failures for modules wanting to access the generic
soc_ac97_ops.  For example:

ERROR: "soc_ac97_ops" [sound/soc/codecs/snd-soc-wm9712.ko] undefined!

To fix, export soc_ac97_ops to modules.

Cc: Mark Brown <broonie@linaro.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-06-29 13:24:34 +01:00
Takashi Iwai
accaf69da1 ASoC: More updates for v3.11
Some more fixes and enhancements, and also a bunch of refectoring for
 AC'97 support which enables more than one AC'97 controller driver to be
 built in.
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Merge tag 'asoc-v3.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: More updates for v3.11

Some more fixes and enhancements, and also a bunch of refectoring for
AC'97 support which enables more than one AC'97 controller driver to be
built in.
2013-06-28 13:36:22 +02:00
Mark Brown
b047e1cce8 ASoC: ac97: Support multi-platform AC'97
Currently we can only have a single platform built in with AC'97 support
due to the use of a global variable to provide the bus operations. Fix
this by making that variable a pointer and having the bus drivers set the
operations prior to registering.

This is not a particularly good or nice approach but it avoids blocking
multiplatform and a real fix involves fixing the fairly deep problems
with AC'97 support - we should be converting it to a real bus.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-06-27 09:48:42 +01:00
Lars-Peter Clausen
2b58107435 ASoC: core: Use kasprintf instead of opencoding it
kasprintf calculates the size of the result string, allocates a buffer large
enough to hold the string and then performs the format string operation. There
are a couple of places in ASoC where these three steps are done by hand and
where kasprintf can be used instead.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-05-14 16:52:52 +04:00
Lars-Peter Clausen
90996f43b3 ASoC: core: Move snd_soc_set_runtime_hwparams() to soc-pcm.c
snd_soc_set_runtime_hwparams() is the only PCM related function that lives in
soc-core.c. All other PCM related functions live in soc-pcm.c, so move
snd_soc_set_runtime_hwparams() over as well for a bit more consistency.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-05-14 16:52:43 +04:00
Michał Mirosław
10e8aa9af1 ASoC: fix kernel message grepability
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-05-12 20:44:18 +04:00
Takashi Iwai
8dd2b66d1a ASoC: More updates for v3.10
The main additional change here is Lars-Peter's DMA work plus the
 platform conversions which have been tested - getting this in mainline
 will make life easier for development after the merge window.  These
 factor a large chunk of code out of the drivers for the platforms using
 dmaengine, greatly simplifying development.
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Merge tag 'asoc-v3.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: More updates for v3.10

The main additional change here is Lars-Peter's DMA work plus the
platform conversions which have been tested - getting this in mainline
will make life easier for development after the merge window.  These
factor a large chunk of code out of the drivers for the platforms using
dmaengine, greatly simplifying development.
2013-04-18 16:24:31 +02:00
Mark Brown
753e23ea58 Linux 3.9-rc7
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Merge tag 'v3.9-rc7' into asoc-dma

Linux 3.9-rc7
2013-04-17 14:24:35 +01:00
Lars-Peter Clausen
71a45cda44 ASoC: Add snd_soc_{add, remove}_platform
snd_soc_{add,remove}_platform are similar to snd_soc_register_platform and
snd_soc_unregister_platform with the difference that they won't allocate and
free the snd_soc_platform structure.

Also add snd_soc_lookup_platform which looks up a platform by the device it has
been registered for.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Tested-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-04-17 14:18:26 +01:00
Mark Brown
56c32c751c Merge remote-tracking branch 'asoc/topic/core' into asoc-next 2013-04-12 13:56:58 +01:00
Mark Brown
1341962577 Merge remote-tracking branch 'asoc/topic/component' into asoc-next 2013-04-12 13:56:56 +01:00
Lars-Peter Clausen
d79e57db84 ASoC: Constify the 'driver' field of snd_soc_platform
The ASoC core does no not modify the driver of a platform. Making it const
allows ASoC platform drivers to declare the snd_soc_platform_driver struct as
const.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-27 23:08:35 +00:00
Stephen Warren
2e1cc199fc ASoC: export snd_soc_register_component
Without this, modules will fail to link against those symbols.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-26 22:52:26 +00:00
Kuninori Morimoto
f53179c026 ASoC: snd_soc_[un]register_dai[s]() become non global function
All drivers are using snd_soc_register_component()
instead of snd_soc_register_dai[s]()
snd_soc_[un]register_dai[s]() are no longer needed

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-26 21:57:54 +00:00
Kuninori Morimoto
a1422b8cb4 ASoC: snd_soc_register_component() uses properly snd_soc_register_dai[s]()
snd_soc_register_dai()  uses fmt_single_name(), and
snd_soc_register_dais() uses fmt_multiple_name()
for dai->name which is used for name based matching.
This patch uses properly snd_soc_register_dai() it it was single driver,
and uses snd_register_dais() if it were multiple drivers.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-26 21:55:21 +00:00
Joonyoung Shim
0eaa6cca1f ASoC: core: Fix to check return value of snd_soc_update_bits_locked()
It can be 0 or 1 return value of snd_soc_update_bits_locked() when it is
success. So just check return value is negative.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2013-03-26 14:10:02 +00:00
Silviu-Mihai Popescu
f7ba716f1e ASoC: core: fix invalid free of devm_ allocated data
The objects allocated by devm_* APIs are managed by devres and are freed when
the device is detached. Hence there is no need to use kfree() explicitly.

Signed-off-by: Silviu-Mihai Popescu <silviupopescu1990@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-20 11:05:56 +01:00
Kuninori Morimoto
030e79f658 ASoC: add snd_soc_register_component()
Current ASoC has register function for platform/codec/dai/card,
but doesn't have for cpu.
It often produces confusion and fault on ASoC.

As result of ASoC community discussion,
we consider new struct snd_soc_component for CPU/CODEC,
and will switch over to use it.

This patch adds very basic struct snd_soc_component,
and register function for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-13 11:07:58 +00:00
Wei Yongjun
e8b18addee ASoC: core: fix possible memory leak in snd_soc_bytes_put()
'data' is malloced in snd_soc_bytes_put() and should be freed
before leaving from the error handling cases, otherwise it will cause
memory leak.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-12 18:42:59 +00:00
Kuninori Morimoto
e1328a832c ASoC: core: remove codec from list if registration failed
Current snd_soc_register_codec() adds codec to list, and calls
snd_soc_register_dais().
But, this listed codec should be removed if dais registration
was failed.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-12 18:34:59 +00:00
Kuninori Morimoto
5acd7dfbd7 ASoC: core: use snd_soc_register_dais() on codec
snd_soc_register_dais() considers dai counts inside.
snd_soc_register_codec() does not need to care for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-04 11:07:43 +08:00
Kuninori Morimoto
f790b94d78 ASoC: core: tidyup snd_soc_register_codec() fail case
kfree() on snd_soc_register_codec() was summarized to one place.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-04 11:07:43 +08:00
Linus Torvalds
9043a2650c The sweeping change is to make add_taint() explicitly indicate whether to disable
lockdep, but it's a mechanical change.
 
 Cheers,
 Rusty.
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Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull module update from Rusty Russell:
 "The sweeping change is to make add_taint() explicitly indicate whether
  to disable lockdep, but it's a mechanical change."

* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  MODSIGN: Add option to not sign modules during modules_install
  MODSIGN: Add -s <signature> option to sign-file
  MODSIGN: Specify the hash algorithm on sign-file command line
  MODSIGN: Simplify Makefile with a Kconfig helper
  module: clean up load_module a little more.
  modpost: Ignore ARC specific non-alloc sections
  module: constify within_module_*
  taint: add explicit flag to show whether lock dep is still OK.
  module: printk message when module signature fail taints kernel.
2013-02-25 15:41:43 -08:00
Mark Brown
556d8b55d0 Merge remote-tracking branch 'asoc/topic/of' into asoc-next 2013-02-11 11:06:38 +00:00
Mark Brown
d289323286 Merge remote-tracking branch 'asoc/topic/core' into asoc-next 2013-02-11 11:06:30 +00:00
Mark Brown
da18396f94 ASoC: core: Allow digital mute for capture
Help avoid noise from the power up of the capture path propagating through
into the start of the recording (especially noise caused by the ramp of
microphone biases) by keeping the capture muted until after we've finished
powering things up with DAPM in the same manner we do for playback. This
allows us to take advantage of soft mute support in the hardware more
effectively and is more consistent.

The core code using the existing digital mute operation is updated to take
advantage of this. Some additional cases in the soc-pcm code and suspend
will need separate handling but these are less practically relevant than
the main runtime stream start/stop case.

Rather than refactor the digital mute function in every single driver a
new operation is added for drivers taking advantage of this functionality,
the old operation should be phased out over time.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by Vinod Koul <vinod.koul@intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
2013-02-08 11:08:44 +00:00
Kuninori Morimoto
8c2d6a9f9c ASoC: clock gating is decided by bool on snd_soc_of_parse_daifmt()
ASoC clock gate settings are continuous/gated only.
This patch decides it as bool, then, gated clock will be default.
Special thanks to Stephen

Cc: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-30 16:42:31 +08:00
Kuninori Morimoto
a7930ed458 ASoC: add snd_soc_of_parse_daifmt() for DeviceTree
This patch adds snd_soc_of_parse_daifmt() and supports below style on DT.

        [prefix]format = "i2c";
        [prefix]clock-gating = "continuous";
        [prefix]bitclock-inversion;
        [prefix]bitclock-master;
        [prefix]frame-master;

Each driver can use specific [prefix]
(ex simple-card,cpu,dai,format = xxx;)

This sample will be
SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CONT |
SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBM_CFM

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-27 11:41:54 +08:00
Mark Brown
b5a8fe439a ASoC: core: Ensure SND_SOC_BYTES writes are from DMA safe memory
With some buses the transfers may DMAed, especially for larger blocks.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-21 17:49:52 +09:00
Rusty Russell
373d4d0997 taint: add explicit flag to show whether lock dep is still OK.
Fix up all callers as they were before, with make one change: an
unsigned module taints the kernel, but doesn't turn off lockdep.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-01-21 17:17:57 +10:30
Chuansheng Liu
d3bf156125 ASoC: core: fix the memory leak in case of remove_aux_dev()
When probing aux_dev, initializing is as below:
device_initialize()
device_add()

So when remove aux_dev, we need do as below:
device_del()
device_put()
Otherwise, the rtd_release() will not be called.

So here using device_unregister() to replace device_del(),
like the action in soc_remove_link_dais().
Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-27 16:14:43 +00:00
Chuansheng Liu
865df9cb12 ASoC: core: fix the memory leak in case of device_add() failure
After called device_initialize(), even device_add() returns
error, we still need use the put_device() to release the reference
to call rtd_release(), which will do the free() action.

Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-27 16:14:43 +00:00