linux-kernel - [PATCH] ASoC: rsnd: Add check for rsnd_mod_power

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Date:   Thu,  1 Sep 2022 15:11:27 +0800
From:   Jiasheng Jiang <jiasheng@...as.ac.cn>
To:     lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, kuninori.morimoto.gx@...esas.com
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        Jiasheng Jiang <jiasheng@...as.ac.cn>
Subject: [PATCH] ASoC: rsnd: Add check for rsnd_mod_power_on

As rsnd_mod_power_on() can return negative numbers,
it should be better to check the return value and
deal with the exception.

Fixes: e7d850dd10f4 ("ASoC: rsnd: use mod base common method on SSI-parent")
Signed-off-by: Jiasheng Jiang <jiasheng@...as.ac.cn>
---
 sound/soc/sh/rcar/ssi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 43c5e27dc5c8..7ade6c5ed96f 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -480,7 +480,9 @@ static int rsnd_ssi_init(struct rsnd_mod *mod,
 
 	ssi->usrcnt++;
 
-	rsnd_mod_power_on(mod);
+	ret = rsnd_mod_power_on(mod);
+	if (ret < 0)
+		return ret;
 
 	rsnd_ssi_config_init(mod, io);
 
-- 
2.25.1