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ASoC: Variable "val" in function rt274_i2c_probe() could be uninitialized 

Inside function rt274_i2c_probe(), if regmap_read() function
returns -EINVAL, then local variable "val" leaves uninitialized
but used in if statement. This is potentially unsafe.

Signed-off-by: Yizhuo <yzhai003@ucr.edu>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Yizhuo 2019-01-03 13:59:12 -08:00 committed by Mark Brown
parent 22c7d5e7ba
commit 8c3590de0a
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GPG Key ID: 24D68B725D5487D0
1 changed files with 4 additions and 1 deletions
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5
sound/soc/codecs/rt274.c
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@ -1128,8 +1128,11 @@ static int rt274_i2c_probe(struct i2c_client *i2c,
return ret;
}
regmap_read(rt274->regmap,
ret = regmap_read(rt274->regmap,
RT274_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID), &val);
if (ret)
return ret;
if (val != RT274_VENDOR_ID) {
dev_err(&i2c->dev,
"Device with ID register %#x is not rt274\n", val);