[PATCH -next] ASoC: rt1316: Fix return value check in rt1316_sdw_probe()

[Wei Yongjun <weiyongjun1@xxxxxxxxxx>]

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@xxxxxxxxxx>
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
---
 sound/soc/codecs/rt1316-sdw.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/rt1316-sdw.c b/sound/soc/codecs/rt1316-sdw.c
index a6fb34a48f33..3b029c56467d 100644
--- 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);
 }