ASoC: rsnd: src: Avoid a potential deadlock

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lockdep warns us that priv->lock and k->k_lock can cause a
deadlock when after acquire of k->k_lock, process is interrupted
by src, while in another routine of src .init, k->k_lock is
acquired with priv->lock held.

This patch avoids a potential deadlock by not calling soc_device_match()
in SRC .init callback, instead it adds new soc fields in priv->flags to
differentiate SoCs.

Fixes: linux-next commit 7674bec4fc ("ASoC: rsnd: update BSDSR/BSDISR handling")
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Jiada Wang 2019-03-07 15:15:53 +09:00 • committed by Mark Brown

parent a39fe6e206

commit ba164a49f8

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3 changed files with 8 additions and 8 deletions

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2

sound/soc/sh/rcar/core.c

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5

sound/soc/sh/rcar/rsnd.h

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9

sound/soc/sh/rcar/src.c

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