diff options
| author | Jiada Wang <jiada_wang@mentor.com> | 2019-03-07 15:15:53 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-03-11 16:58:52 +0000 |
| commit | ba164a49f8f7390b036713bf8a70a150a938c670 (patch) | |
| tree | 776b2bd382ddda2533107261367c6ab22f2d0fb1 /sound/soc/sh/rcar/core.c | |
| parent | a39fe6e2061615496c12825d6d249fedf1974f8a (diff) | |
ASoC: rsnd: src: Avoid a potential deadlock
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@mentor.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sh/rcar/core.c')
| -rw-r--r-- | sound/soc/sh/rcar/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index 9834474684b1..8d3758f862f1 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) }, {}, }; MODULE_DEVICE_TABLE(of, rsnd_of_match); |