From 50813a270801972fe172e06ea55fbe310fa25822 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Mon, 20 Feb 2017 22:05:07 +0100
Subject: [PATCH 090/286] ASoC: rsnd: check return value of init function

Currently, this function cannot fail for the ADG case. Still, let's
apply defensive programming techniques to make sure we fail gracefully
whenever rsnd_mod_init() gets extended with another failure case.
Reported by Coverity (CID 1397893).

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from commit 56d2c61d611a50e58dba521be1325dc90f9cc933)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 sound/soc/sh/rcar/adg.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/sound/soc/sh/rcar/adg.c
+++ b/sound/soc/sh/rcar/adg.c
@@ -564,6 +564,7 @@ int rsnd_adg_probe(struct rsnd_priv *pri
 	struct rsnd_adg *adg;
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct device_node *np = dev->of_node;
+	int ret;
 
 	adg = devm_kzalloc(dev, sizeof(*adg), GFP_KERNEL);
 	if (!adg) {
@@ -571,8 +572,10 @@ int rsnd_adg_probe(struct rsnd_priv *pri
 		return -ENOMEM;
 	}
 
-	rsnd_mod_init(priv, &adg->mod, &adg_ops,
+	ret = rsnd_mod_init(priv, &adg->mod, &adg_ops,
 		      NULL, NULL, 0, 0);
+	if (ret)
+		return ret;
 
 	rsnd_adg_get_clkin(priv, adg);
 	rsnd_adg_get_clkout(priv, adg);