kernel/linux.git/sound/soc/sof/control.c, branch v5.10.257

ASoC: SOF: control: add size checks for ext_bytes control .put()

2020-09-21T22:14:47+00:00

Make sure the TLV header and size are consistent before copying from userspace. Fixes: c3078f5397046 ('ASoC: SOF: Add Sound Open Firmware KControl support') Signed-off-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Guennadi Liakhovetski Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200921110814.2910477-4-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: control: fix size checks for volatile ext_bytes control .get()

2020-09-21T22:14:46+00:00

Mirror addition of checks for regular ext_bytes controls. Fixes: 783560d02dd61 ('ASoC: SOF: Implement snd_sof_bytes_ext_volatile_get kcontrol IO') Signed-off-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Guennadi Liakhovetski Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200921110814.2910477-3-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: control: fix size checks for ext_bytes control .get()

2020-09-21T22:14:45+00:00

cppcheck complains twice: sound/soc/sof/control.c:436:2: style: Assignment of function parameter has no effect outside the function. [uselessAssignmentArg] size -= sizeof(const struct snd_ctl_tlv); ^ sound/soc/sof/control.c:436:7: style: Variable 'size' is assigned a value that is never used. [unreadVariable] size -= sizeof(const struct snd_ctl_tlv); Somehow we dropped the checks for the size argument when upstreaming the code, somewhere between v5 and v6. Re-add a size check to avoid providing userspace with more data that it asked for. Also fix all error codes, we should return -ENOSPC instead of -EINVAL. Fixes: c3078f5397046 ('ASoC: SOF: Add Sound Open Firmware KControl support') Signed-off-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Guennadi Liakhovetski Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200921110814.2910477-2-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: fix range checks

2020-09-17T14:53:20+00:00

On multiple locations checks are performed of untrusted values after adding a constant to them. This is wrong, because the addition might overflow and the result can then pass the check, although the original value is invalid. Fix multiple such issues by checking the actual value and not a sum of it and a constant. Signed-off-by: Guennadi Liakhovetski Reviewed-by: Ranjani Sridharan Reviewed-by: Pierre-Louis Bossart Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200917105633.2579047-8-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: (cosmetic) remove redundant "ret" variable uses

2020-09-17T14:53:19+00:00

In some cases no "ret" variable is even needed, those functions always return 0 anyway, in other cases "ret" initialisation is redundant. Signed-off-by: Guennadi Liakhovetski Reviewed-by: Ranjani Sridharan Reviewed-by: Pierre-Louis Bossart Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200917105633.2579047-6-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: control: update test for pm_runtime_get_sync()

2020-09-17T14:53:18+00:00

We need to avoid reporting an error for -EACCESS when pm_runtime is not enabled. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Guennadi Liakhovetski Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200917105633.2579047-5-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: Implement snd_sof_bytes_ext_volatile_get kcontrol IO

2020-09-08T12:55:00+00:00

This patch implements the snd_sof_bytes_ext_volatile_get() to read the actual parameters from DSP by sending the SOF_IPC_COMP_GET_DATA IPC for the kcontrol of type SOF_TPLG_KCTL_BYTES_VOLATILE_RO. Signed-off-by: Dharageswari R Reviewed-by: Guennadi Liakhovetski Reviewed-by: Ranjani Sridharan Reviewed-by: Pierre-Louis Bossart Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200908092825.1813847-2-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown

Merge branch 'for-5.7' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-5.8

2020-05-12T15:12:47+00:00

ASoC: SOF/Intel: clarify SPDX license with GPL-2.0-only

2020-05-01T16:45:24+00:00

Remove the ambiguity with GPL-2.0 and use an explicit GPL-2.0-only tag. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Daniel Baluta Reviewed-by: Kai Vehmanen Reviewed-by: Guennadi Liakhovetski Link: https://lore.kernel.org/r/20200501145850.15178-1-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: Update correct LED status at the first time usage of update_mute_led()

2020-05-01T11:27:17+00:00

At the first time update_mute_led() gets called, if channels are already muted, the temp value equals to led_value as 0, skipping the following LED setting. So set led_value to -1 as an uninitialized state, to update the correct LED status at first time usage. Fixes: 5d43001ae436 ("ASoC: SOF: acpi led support for switch controls") Signed-off-by: Kai-Heng Feng Reviewed-by: Ranjani Sridharan Acked-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200430091139.7003-1-kai.heng.feng@canonical.com Signed-off-by: Mark Brown