Re: [alsa-devel] [PATCH v1 1/2] ASoC: rsnd: ssi: fix race condition in rsnd_ssi_pointer_update

Hi Jiada

Thank you for your patch

Currently there is race condition between set of byte_pos and wrap it around when new buffer starts. If .pointer is called in-between it will result in inconsistent pointer position be returned from .pointer callback.

This patch increments buffer pointer atomically to avoid this issue.

Signed-off-by: Jiada Wang jiada_wang@mentor.com Reviewed-by: Takashi Sakamoto takashi.sakamoto@miraclelinux.com

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You using playback with PIO mode ? Because this function is no longer used on DMA mode

Best regards --- Kuninori Morimoto