ASoC: cs42l43: Fix missing error code in cs42l43_codec_probe()

When clk_get_optional() fails, the error handling code does a 'goto
err_pm' with ret = 0, which is resturning success on a failure path.

Fix this by assigning the PTR_ERR(priv-mclk) to ret variable.

Fixes: fc918cbe ("ASoC: cs42l43: Add support for the cs42l43")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com
Link: https://lore.kernel.org/r/20230829073635.1877367-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Mark Brown <broonie@kernel.org

sound/soc/codecs/cs42l43.c

@@ -2205,7 +2205,8 @@ static int cs42l43_codec_probe(struct platform_device *pdev)
 	// Don't use devm as we need to get against the MFD device
 	priv->mclk = clk_get_optional(cs42l43->dev, "mclk");
 	if (IS_ERR(priv->mclk)) {
-		dev_err_probe(priv->dev, PTR_ERR(priv->mclk), "Failed to get mclk\n");
+		ret = PTR_ERR(priv->mclk);
+		dev_err_probe(priv->dev, ret, "Failed to get mclk\n");
 		goto err_pm;
 	}