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  1. 07 Aug, 2019 1 commit
    • Wenwen Wang's avatar
      ALSA: hiface: fix multiple memory leak bugs · 3d92aa45
      Wenwen Wang authored 
      In hiface_pcm_init(), 'rt' is firstly allocated through kzalloc(). Later
on, hiface_pcm_init_urb() is invoked to initialize 'rt->out_urbs[i]'. In
hiface_pcm_init_urb(), 'rt->out_urbs[i].buffer' is allocated through
kzalloc().  However, if hiface_pcm_init_urb() fails, both 'rt' and
'rt->out_urbs[i].buffer' are not deallocated, leading to memory leak bugs.
Also, 'rt->out_urbs[i].buffer' is not deallocated if snd_pcm_new() fails.

To fix the above issues, free 'rt' and 'rt->out_urbs[i].buffer'.

Fixes: a91c3fb2 ("Add M2Tech hiFace USB-SPDIF driver")
Signed-off-by: default avatarWenwen Wang <wenwen@cs.uga.edu>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      3d92aa45
  3. 06 Aug, 2019 5 commits
  5. 02 Aug, 2019 2 commits
  7. 31 Jul, 2019 3 commits
  9. 30 Jul, 2019 1 commit
  11. 29 Jul, 2019 1 commit
  13. 27 Jul, 2019 1 commit
    • Samuel Thibault's avatar
      ALSA: hda: Fix 1-minute detection delay when i915 module is not available · 74bf71ed
      Samuel Thibault authored 
      Distribution installation images such as Debian include different sets
of modules which can be downloaded dynamically.  Such images may notably
include the hda sound modules but not the i915 DRM module, even if the
latter was enabled at build time, as reported on
https://bugs.debian.org/931507

In such a case hdac_i915 would be linked in and try to load the i915
module, fail since it is not there, but still wait for a whole minute
before giving up binding with it.

This fixes such as case by only waiting for the binding if the module
was properly loaded (or module support is disabled, in which case i915
is already compiled-in anyway).

Fixes: f9b54e19 ("ALSA: hda/i915: Allow delayed i915 audio component binding")
Signed-off-by: default avatarSamuel Thibault <samuel.thibault@ens-lyon.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      74bf71ed
  15. 26 Jul, 2019 4 commits
  17. 25 Jul, 2019 1 commit
  19. 24 Jul, 2019 2 commits
  21. 23 Jul, 2019 7 commits
  23. 22 Jul, 2019 6 commits
    • Wenwen Wang's avatar
      ASoC: dapm: fix a memory leak bug · 45004d66
      Wenwen Wang authored 
      In snd_soc_dapm_new_control_unlocked(), a kernel buffer is allocated in
dapm_cnew_widget() to hold the new dapm widget. Then, different actions are
taken according to the id of the widget, i.e., 'w->id'. If any failure
occurs during this process, snd_soc_dapm_new_control_unlocked() should be
terminated by going to the 'request_failed' label. However, the allocated
kernel buffer is not freed on this code path, leading to a memory leak bug.

To fix the above issue, free the buffer before returning from
snd_soc_dapm_new_control_unlocked() through the 'request_failed' label.
Signed-off-by: default avatarWenwen Wang <wenwen@cs.uga.edu>
Link: https://lore.kernel.org/r/1563803864-2809-1-git-send-email-wang6495@umn.eduSigned-off-by: default avatarMark Brown <broonie@kernel.org>
      45004d66
    • Masahiro Yamada's avatar
      ASoC: SOF: use __u32 instead of uint32_t in uapi headers · 62ec3d13
      Masahiro Yamada authored 
      When CONFIG_UAPI_HEADER_TEST=y, exported headers are compile-tested to
make sure they can be included from user-space.

Currently, header.h and fw.h are excluded from the test coverage.
To make them join the compile-test, we need to fix the build errors
attached below.

For a case like this, we decided to use __u{8,16,32,64} variable types
in this discussion:

  https://lkml.org/lkml/2019/6/5/18

Build log:

  CC      usr/include/sound/sof/header.h.s
  CC      usr/include/sound/sof/fw.h.s
In file included from <command-line>:32:0:
./usr/include/sound/sof/header.h:19:2: error: unknown type name ‘uint32_t’
  uint32_t magic;  /**< 'S', 'O', 'F', '\0' */
  ^~~~~~~~
./usr/include/sound/sof/header.h:20:2: error: unknown type name ‘uint32_t’
  uint32_t type;  /**< component specific type */
  ^~~~~~~~
./usr/include/sound/sof/header.h:21:2: error: unknown type name ‘uint32_t’
  uint32_t size;  /**< size in bytes of data excl. this struct */
  ^~~~~~~~
./usr/include/sound/sof/header.h:22:2: error: unknown type name ‘uint32_t’
  uint32_t abi;  /**< SOF ABI version */
  ^~~~~~~~
./usr/include/sound/sof/header.h:23:2: error: unknown type name ‘uint32_t’
  uint32_t reserved[4]; /**< reserved for future use */
  ^~~~~~~~
./usr/include/sound/sof/header.h:24:2: error: unknown type name ‘uint32_t’
  uint32_t data[0]; /**< Component data - opaque to core */
  ^~~~~~~~
In file included from <command-line>:32:0:
./usr/include/sound/sof/fw.h:49:2: error: unknown type name ‘uint32_t’
  uint32_t size;  /* bytes minus this header */
  ^~~~~~~~
./usr/include/sound/sof/fw.h:50:2: error: unknown type name ‘uint32_t’
  uint32_t offset; /* offset from base */
  ^~~~~~~~
./usr/include/sound/sof/fw.h:64:2: error: unknown type name ‘uint32_t’
  uint32_t size;  /* bytes minus this header */
  ^~~~~~~~
./usr/include/sound/sof/fw.h:65:2: error: unknown type name ‘uint32_t’
  uint32_t num_blocks; /* number of blocks */
  ^~~~~~~~
./usr/include/sound/sof/fw.h:73:2: error: unknown type name ‘uint32_t’
  uint32_t file_size; /* size of file minus this header */
  ^~~~~~~~
./usr/include/sound/sof/fw.h:74:2: error: unknown type name ‘uint32_t’
  uint32_t num_modules; /* number of modules */
  ^~~~~~~~
./usr/include/sound/sof/fw.h:75:2: error: unknown type name ‘uint32_t’
  uint32_t abi;  /* version of header format */
  ^~~~~~~~
Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Link: https://lore.kernel.org/r/20190721142308.30306-1-yamada.masahiro@socionext.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
      62ec3d13
    • Enric Balletbo i Serra's avatar
      SoC: rockchip: rockchip_max98090: Enable MICBIAS for headset keypress detection · f86621cd
      Enric Balletbo i Serra authored 
      The TS3A227E says that the headset keypress detection needs the MICBIAS
power in order to report the key events to ensure proper operation
The headset keypress detection needs the MICBIAS power in order to report
the key events all the time as long as MIC is present. So MICBIAS pin
is forced on when a MICROPHONE is detected.

On Veyron Minnie I observed that if the MICBIAS power is not present and
the key press detection is activated (just because it is enabled when you
insert a headset), it randomly reports a keypress on insert.
E.g. (KEY_PLAYPAUSE)

 Event: (SW_HEADPHONE_INSERT), value 1
 Event: (SW_MICROPHONE_INSERT), value 1
 Event: -------------- SYN_REPORT ------------
 Event: (KEY_PLAYPAUSE), value 1

Userspace thinks that KEY_PLAYPAUSE is pressed and produces the annoying
effect that the media player starts a play/pause loop.

Note that, although most of the time the key reported is the one
associated with BTN_0, not always this is true. On my tests I also saw
different keys reported
Signed-off-by: default avatarEnric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20190719173929.24065-1-enric.balletbo@collabora.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
      f86621cd
    • Shengjiu Wang's avatar
      ASoC: cs42xx8: Fix MFREQ selection issue for async mode · 48dfd37a
      Shengjiu Wang authored 
      When sample rate of TX is different with sample rate of RX in
async mode, the MFreq selection will be wrong.

For example, sysclk = 24.576MHz, TX rate = 96000Hz, RX rate = 48000Hz.
Then ratio of TX = 256, ratio of RX = 512, For MFreq is shared by TX
and RX instance, the correct value of MFreq is 2 for both TX and RX.

But original method will cause MFreq = 0 for TX, MFreq = 2 for RX.
If TX is started after RX, RX will be impacted, RX work abnormal with
MFreq = 0.

This patch is to select proper MFreq value according to TX rate and
RX rate.

Fixes: 0c516b4f ("ASoC: cs42xx8: Add codec driver support for CS42448/CS42888")
Signed-off-by: default avatarShengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/20190716094547.46787-1-shengjiu.wang@nxp.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
      48dfd37a
    • Charles Keepax's avatar
      ASoC: dapm: Fix handling of custom_stop_condition on DAPM graph walks · 8dd26dff
      Charles Keepax authored 
      DPCM uses snd_soc_dapm_dai_get_connected_widgets to build a
list of the widgets connected to a specific front end DAI so it
can search through this list for available back end DAIs. The
custom_stop_condition was added to is_connected_ep to facilitate this
list not containing more widgets than is necessary. Doing so both
speeds up the DPCM handling as less widgets need to be searched and
avoids issues with CODEC to CODEC links as these would be confused
with back end DAIs if they appeared in the list of available widgets.

custom_stop_condition was implemented by aborting the graph walk
when the condition is triggered, however there is an issue with this
approach. Whilst walking the graph is_connected_ep should update the
endpoints cache on each widget, if the walk is aborted the number
of attached end points is unknown for that sub-graph. When the stop
condition triggered, the original patch ignored the triggering widget
and returned zero connected end points; a later patch updated this
to set the triggering widget's cache to 1 and return that. Both of
these approaches result in inaccurate values being stored in various
end point caches as the values propagate back through the graph,
which can result in later issues with widgets powering/not powering
unexpectedly.

As the original goal was to reduce the size of the widget list passed
to the DPCM code, the simplest solution is to limit the functionality
of the custom_stop_condition to the widget list. This means the rest
of the graph will still be processed resulting in correct end point
caches, but only widgets up to the stop condition will be added to the
returned widget list.

Fixes: 6742064a ("ASoC: dapm: support user-defined stop condition in dai_get_connected_widgets")
Fixes: 5fdd022c ("ASoC: dpcm: play nice with CODEC<->CODEC links")
Fixes: 09464974 ("ASoC: dapm: Fix to return correct path list in is_connected_ep.")
Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20190718084333.15598-1-ckeepax@opensource.cirrus.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
      8dd26dff
    • Christophe JAILLET's avatar
      ALSA: line6: Fix a typo · e4091bdd
      Christophe JAILLET authored 
      s/Vairax/Variax/
Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      e4091bdd
  25. 19 Jul, 2019 1 commit
    • Takashi Iwai's avatar
      ALSA: pcm: Fix refcount_inc() on zero usage · 0e279dce
      Takashi Iwai authored 
      The recent rewrite of PCM link lock management introduced the refcount
in snd_pcm_group object, managed by the kernel refcount_t API.  This
caused unexpected kernel warnings when the kernel is built with
CONFIG_REFCOUNT_FULL=y.  As the warning line indicates, the problem is
obviously that we start with refcount=0 and do refcount_inc() for
adding each PCM link, while refcount_t API doesn't like refcount_inc()
performed on zero.

For adapting the proper refcount_t usage, this patch changes the logic
slightly:
- The initial refcount is 1, assuming the single list entry
- The refcount is incremented / decremented at each PCM link addition
  and deletion
- ... which allows us concentrating only on the refcount as a release
  condition

Fixes: f57f3df0 ("ALSA: pcm: More fine-grained PCM link locking")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204221Reported-and-tested-by: default avatarDuncan Overbruck <kernel@duncano.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      0e279dce
  27. 18 Jul, 2019 2 commits
  29. 16 Jul, 2019 3 commits
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