[PATCH] ASoC: fsl: fsl_qmc_audio: Reset audio data pointers on TRIGGER_START event

[Christophe Leroy]

Hi Mark,


Le 10/04/2025 à 15:47, Mark Brown a écrit :
> On Thu, 10 Apr 2025 11:16:43 +0200, Herve Codina wrote:
>> On SNDRV_PCM_TRIGGER_START event, audio data pointers are not reset.
>>
>> This leads to wrong data buffer usage when multiple TRIGGER_START are
>> received and ends to incorrect buffer usage between the user-space and
>> the driver. Indeed, the driver can read data that are not already set by
>> the user-space or the user-space and the driver are writing and reading
>> the same area.
>>
>> [...]
> 
> Applied to
> 
>     https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgit.kernel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Fbroonie%2Fsound.git&data=05%7C02%7Cchristophe.leroy%40csgroup.eu%7C438de093b4c04d4c0a8f08dd78362e30%7C8b87af7d86474dc78df45f69a2011bb5%7C0%7C0%7C638798896267382068%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=d%2FuL%2FFAOcpRY2v9YtxTMdiX%2B3GgHKDE7y5TMTc9cK94%3D&reserved=0 for-next

Would it be possible to get this patch into one of the v6.15 rc as it is 
a bug fix ?

Thanks
Christophe

> 
> Thanks!
> 
> [1/1] ASoC: fsl: fsl_qmc_audio: Reset audio data pointers on TRIGGER_START event
>        commit: 9aa33d5b4a53a1945dd2aee45c09282248d3c98b
> 
> All being well this means that it will be integrated into the linux-next
> tree (usually sometime in the next 24 hours) and sent to Linus during
> the next merge window (or sooner if it is a bug fix), however if
> problems are discovered then the patch may be dropped or reverted.
> 
> You may get further e-mails resulting from automated or manual testing
> and review of the tree, please engage with people reporting problems and
> send followup patches addressing any issues that are reported if needed.
> 
> If any updates are required or you are submitting further changes they
> should be sent as incremental updates against current git, existing
> patches will not be replaced.
> 
> Please add any relevant lists and maintainers to the CCs when replying
> to this mail.
> 
> Thanks,
> Mark
>