Skip to content

L
linux
Switch branch/tag
  1. 21 Jan, 2019 1 commit
    • Kuninori Morimoto's avatar
      ASoC: soc-core: add .num_platform for dai_link · 910fdcab
      Kuninori Morimoto authored 
      Current snd_soc_dai_link is starting to use snd_soc_dai_link_component
(= modern) style for Platform, but it is still assuming single Platform
so far. We will need to have multi Platform support in the not far
future.

Currently only simple card is using it as sound card driver,
and other drivers are converted to it from legacy style by
snd_soc_init_platform().
To avoid future problem of multi Platform support, let's add
num_platforms before it is too late.

In the same time, to make it same naming mothed, "platform" should
be "platforms". This patch fixup it too.
Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
      910fdcab
  3. 18 Jan, 2019 9 commits
  5. 17 Jan, 2019 1 commit
  7. 16 Jan, 2019 1 commit
  9. 15 Jan, 2019 8 commits
    • Cheng-Yi Chiang's avatar
      ASoC: qcom: Kconfig: select max98927 for sdm845 · 0ddb0fb0
      Cheng-Yi Chiang authored 
      Select SND_SOC_MAX98927 for SND_SOC_SDM845.
Acked-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: default avatarRohit kumar <rohitkr@codeaurora.org>
Signed-off-by: default avatarCheng-Yi Chiang <cychiang@chromium.org>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
      0ddb0fb0
    • Gustavo A. R. Silva's avatar
      ASoC: amd: Fix potential NULL pointer dereference · 4cb79ef9
      Gustavo A. R. Silva authored 
      Check return value from call to devm_kzalloc() in order to prevent a
potential NULL pointer dereference.

Also, notice that it makes no sense to allocate any resources if
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); fails,
so move the call to devm_kzalloc() below the mentioned code.

Lastly, improve the use of sizeof in the call to devm_kzalloc() by
changing it from sizeof(struct i2s_dev_data) to sizeof(*adata)

This issue was detected with the help of Coccinelle.

Fixes: ac289c7e ("ASoC: amd: add ACP3x PCM platform driver")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarGustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
      4cb79ef9
    • Silvio Cesare's avatar
      ASoC: imx-audmux: change snprintf to scnprintf for possible overflow · c407cd00
      Silvio Cesare authored 
      Change snprintf to scnprintf. There are generally two cases where using
snprintf causes problems.

1) Uses of size += snprintf(buf, SIZE - size, fmt, ...)
In this case, if snprintf would have written more characters than what the
buffer size (SIZE) is, then size will end up larger than SIZE. In later
uses of snprintf, SIZE - size will result in a negative number, leading
to problems. Note that size might already be too large by using
size = snprintf before the code reaches a case of size += snprintf.

2) If size is ultimately used as a length parameter for a copy back to user
space, then it will potentially allow for a buffer overflow and information
disclosure when size is greater than SIZE. When the size is used to index
the buffer directly, we can have memory corruption. This also means when
size = snprintf... is used, it may also cause problems since size may become
large.  Copying to userspace is mitigated by the HARDENED_USERCOPY kernel
configuration.

The solution to these issues is to use scnprintf which returns the number of
characters actually written to the buffer, so the size variable will never
exceed SIZE.
Signed-off-by: default avatarSilvio Cesare <silvio.cesare@gmail.com>
Cc: Timur Tabi <timur@kernel.org>
Cc: Nicolin Chen <nicoleotsuka@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Xiubo Li <Xiubo.Lee@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: default avatarWilly Tarreau <w@1wt.eu>
Acked-by: default avatarNicolin Chen <nicoleotsuka@gmail.com>
Reviewed-by: default avatarKees Cook <keescook@chromium.org>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
      c407cd00
    • Gustavo A. R. Silva's avatar
      ASoC: rt5514-spi: Fix potential NULL pointer dereference · 060d0bf4
      Gustavo A. R. Silva authored 
      There is a potential NULL pointer dereference in case devm_kzalloc()
fails and returns NULL.

Fix this by adding a NULL check on rt5514_dsp.

This issue was detected with the help of Coccinelle.

Fixes: 6eebf35b ("ASoC: rt5514: add rt5514 SPI driver")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarGustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
      060d0bf4
    • Silvio Cesare's avatar
      ASoC: dapm: change snprintf to scnprintf for possible overflow · e581e151
      Silvio Cesare authored 
      Change snprintf to scnprintf. There are generally two cases where using
snprintf causes problems.

1) Uses of size += snprintf(buf, SIZE - size, fmt, ...)
In this case, if snprintf would have written more characters than what the
buffer size (SIZE) is, then size will end up larger than SIZE. In later
uses of snprintf, SIZE - size will result in a negative number, leading
to problems. Note that size might already be too large by using
size = snprintf before the code reaches a case of size += snprintf.

2) If size is ultimately used as a length parameter for a copy back to user
space, then it will potentially allow for a buffer overflow and information
disclosure when size is greater than SIZE. When the size is used to index
the buffer directly, we can have memory corruption. This also means when
size = snprintf... is used, it may also cause problems since size may become
large.  Copying to userspace is mitigated by the HARDENED_USERCOPY kernel
configuration.

The solution to these issues is to use scnprintf which returns the number of
characters actually written to the buffer, so the size variable will never
exceed SIZE.
Signed-off-by: default avatarSilvio Cesare <silvio.cesare@gmail.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: default avatarWilly Tarreau <w@1wt.eu>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
      e581e151
    • Shuming Fan's avatar
      ASoC: rt5682: Fix PLL source register definitions · ee7ea2a9
      Shuming Fan authored 
      Fix typo which causes headphone no sound while using BCLK
as PLL source.
Signed-off-by: default avatarShuming Fan <shumingf@realtek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
      ee7ea2a9
    • Matthias Reichl's avatar
      ASoC: core: Don't defer probe on optional, NULL components · 2833548e
      Matthias Reichl authored 
      cpu and platform are optional components in DAI links. For example
codec-codec links usually have no platform set.

Call snd_soc_find_component only if the name or of_node of
a cpu or platform is set. Otherwise it will return NULL and
soc_init_dai_link bails out immediately with -EPROBE_DEFER,
meaning registering a card with NULL cpu or platform in DAI links
can never succeed.

Fixes: 8780cf11 ("ASoC: soc-core: defer card probe until all component is added to list")
Signed-off-by: default avatarMatthias Reichl <hias@horus.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
      2833548e
    • Mark Brown's avatar
      ASoC: core: Make snd_soc_find_component() more robust · 5a7b2aab
      Mark Brown authored 
      There are some use cases where you're checking for a lot of things on a
card and it makes sense that you might end up trying to call
snd_soc_find_component() without either a name or an of_node.  Currently
in that case we try to dereference the name and crash but it's more
useful to allow the caller to just treat that as a case where we don't
find anything, that error handling will already exist.

Inspired by a patch from Ajit Pandey fixing some callers.

Fixes: 8780cf11 ("ASoC: soc-core: defer card probe until all component is added to list")
Reported-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
      5a7b2aab
  11. 14 Jan, 2019 5 commits
  13. 10 Jan, 2019 2 commits
  15. 09 Jan, 2019 5 commits
  17. 08 Jan, 2019 2 commits
  19. 07 Jan, 2019 6 commits
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7