Hi Jiada, Fabrizio,
On Thu, Mar 7, 2019 at 7:17 AM Jiada Wang <jiada_wang@xxxxxxxxxx> wrote:
> 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 7674bec4fc09 ("ASoC: rsnd: update BSDSR/BSDISR handling")
> Signed-off-by: Jiada Wang <jiada_wang@xxxxxxxxxx>
> ---
> sound/soc/sh/rcar/core.c | 2 ++
> sound/soc/sh/rcar/rsnd.h | 5 +++++
> sound/soc/sh/rcar/src.c | 9 +--------
> 3 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
> index 022996d2db13..4fe83e611c01 100644
> --- a/sound/soc/sh/rcar/core.c
> +++ b/sound/soc/sh/rcar/core.c
> @@ -110,6 +110,8 @@ static const struct of_device_id rsnd_of_match[] = {
> { .compatible = "renesas,rcar_sound-gen1", .data = (void *)RSND_GEN1 },
> { .compatible = "renesas,rcar_sound-gen2", .data = (void *)RSND_GEN2 },
> { .compatible = "renesas,rcar_sound-gen3", .data = (void *)RSND_GEN3 },
> + /* Special Handling */
> + { .compatible = "renesas,rcar_sound-r8a77990", .data = (void *)(RSND_GEN3 | RSND_SOC_E) },
I guess we need an entry for RZ/G2E, too?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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