ASoC: mediatek: mt2701: fix some error handling in probe

The check for if the "afe" allocation failed was too late and there
wasn't a check for "afe->platform_priv".

Fixes: 43a6a7e ('ASoC: mediatek: add mt2701 platform driver implementation.')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Garlic Tseng <garlic.tseng@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/mediatek/mt2701/mt2701-afe-pcm.c

@@ -1489,11 +1489,13 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
 
 	ret = 0;
 	afe = devm_kzalloc(&pdev->dev, sizeof(*afe), GFP_KERNEL);
+	if (!afe)
+		return -ENOMEM;
 	afe->platform_priv = devm_kzalloc(&pdev->dev, sizeof(*afe_priv),
 					  GFP_KERNEL);
-	afe_priv = afe->platform_priv;
-	if (!afe)
+	if (!afe->platform_priv)
 		return -ENOMEM;
+	afe_priv = afe->platform_priv;
 
 	afe->dev = &pdev->dev;
 	dev = afe->dev;