From 2167c0b205960607fb136b4bb3c556a62be1569a Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Wed, 15 Dec 2021 11:15:50 +0800
Subject: [PATCH] ASoC: rt5663: Handle device_property_read_u32_array error codes
Git-commit: 2167c0b205960607fb136b4bb3c556a62be1569a
Patch-mainline: v5.17-rc1
References: git-fixes

The return value of device_property_read_u32_array() is not always 0.
To catch the exception in case that devm_kzalloc failed and the
rt5663->imp_table was NULL, which caused the failure of
device_property_read_u32_array.

Fixes: 450f0f6a8fb4 ("ASoC: rt5663: Add the manual offset field to compensate the DC offset")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20211215031550.70702-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/codecs/rt5663.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/rt5663.c b/sound/soc/codecs/rt5663.c
index 0389b2bb360e..2138f62e6af5 100644
--- a/sound/soc/codecs/rt5663.c
+++ b/sound/soc/codecs/rt5663.c
@@ -3461,6 +3461,7 @@ static void rt5663_calibrate(struct rt5663_priv *rt5663)
 static int rt5663_parse_dp(struct rt5663_priv *rt5663, struct device *dev)
 {
 	int table_size;
+	int ret;
 
 	device_property_read_u32(dev, "realtek,dc_offset_l_manual",
 		&rt5663->pdata.dc_offset_l_manual);
@@ -3477,9 +3478,11 @@ static int rt5663_parse_dp(struct rt5663_priv *rt5663, struct device *dev)
 		table_size = sizeof(struct impedance_mapping_table) *
 			rt5663->pdata.impedance_sensing_num;
 		rt5663->imp_table = devm_kzalloc(dev, table_size, GFP_KERNEL);
-		device_property_read_u32_array(dev,
+		ret = device_property_read_u32_array(dev,
 			"realtek,impedance_sensing_table",
 			(u32 *)rt5663->imp_table, table_size);
+		if (ret)
+			return ret;
 	}
 
 	return 0;
@@ -3504,8 +3507,11 @@ static int rt5663_i2c_probe(struct i2c_client *i2c,
 
 	if (pdata)
 		rt5663->pdata = *pdata;
-	else
-		rt5663_parse_dp(rt5663, &i2c->dev);
+	else {
+		ret = rt5663_parse_dp(rt5663, &i2c->dev);
+		if (ret)
+			return ret;
+	}
 
 	for (i = 0; i < ARRAY_SIZE(rt5663->supplies); i++)
 		rt5663->supplies[i].supply = rt5663_supply_names[i];
-- 
2.31.1