ASoC: rt715: Fix return check for devm_regmap_init_sdw()

devm_regmap_init_sdw() returns a valid pointer on success or ERR_PTR on
failure which should be checked with IS_ERR. Also use PTR_ERR for
returning error codes.

Reported-by: Takashi Iwai <tiwai@suse.de>
Fixes: d1ede0641b05 ("ASoC: rt715: add RT715 codec driver")
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200826163340.3249608-5-vkoul@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/rt715-sdw.c b/sound/soc/codecs/rt715-sdw.c
index d11b23d..68a3673 100644 (file)
--- a/sound/soc/codecs/rt715-sdw.c
+++ b/sound/soc/codecs/rt715-sdw.c
@@ -527,8 +527,8 @@ static int rt715_sdw_probe(struct sdw_slave *slave,
 
        /* Regmap Initialization */
        sdw_regmap = devm_regmap_init_sdw(slave, &rt715_sdw_regmap);
-       if (!sdw_regmap)
-               return -EINVAL;
+       if (IS_ERR(sdw_regmap))
+               return PTR_ERR(sdw_regmap);
 
        regmap = devm_regmap_init(&slave->dev, NULL, &slave->dev,
                &rt715_regmap);