ASoC: rt1316: Fix return value check in rt1316_sdw_probe()

In case of error, the function devm_regmap_init_sdw() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Fixes: a262057df513 ("ASoC: rt1316: Add RT1316 SDCA vendor-specific driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210303064041.898281-1-weiyongjun1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/rt1316-sdw.c b/sound/soc/codecs/rt1316-sdw.c
index a6fb34a..3b029c5 100644 (file)
--- a/sound/soc/codecs/rt1316-sdw.c
+++ b/sound/soc/codecs/rt1316-sdw.c
@@ -669,8 +669,8 @@ static int rt1316_sdw_probe(struct sdw_slave *slave,
 
        /* Regmap Initialization */
        regmap = devm_regmap_init_sdw(slave, &rt1316_sdw_regmap);
-       if (!regmap)
-               return -EINVAL;
+       if (IS_ERR(regmap))
+               return PTR_ERR(regmap);
 
        return rt1316_sdw_init(&slave->dev, regmap, slave);
 }