ASoC: sgtl5000: use after free in ldo_regulator_register()

The "ldo" variable was dereferenced after free on the error path.

Signed-off-by: Dan Carpenter <[e-mail]>
Acked-by: Liam Girdwood <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/codecs/sgtl5000.c

···
 	ldo->dev = regulator_register(&ldo->desc, codec->dev,
 					  init_data, ldo);
 	if (IS_ERR(ldo->dev)) {
+		int ret = PTR_ERR(ldo->dev);
+
 		dev_err(codec->dev, "failed to register regulator\n");
 		kfree(ldo->desc.name);
 		kfree(ldo);
 
-		return PTR_ERR(ldo->dev);
+		return ret;
 	}
 
 	return 0;