ASoC: soc-card: soc-card-test: Fix some error handling in init()

There are two issues here:
1) The get_device() needs a matching put_device() on error paths.
2) The "if (!ret)" was supposed to be "if (ret)".

I re-arranged the code a bit to do the allocation before the
get_device().

Fixes: ef7784e ("ASoC: soc-card: Add KUnit test case for snd_soc_card_get_kcontrol")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/450dd21a-b24b-48ba-9aa4-c02e4617852f@moroto.mountain
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: Dan Carpenter

sound/soc/soc-card-test.c

@@ -134,22 +134,24 @@ static int soc_card_test_case_init(struct kunit *test)
 
 	test->priv = priv;
 
+	priv->card = kunit_kzalloc(test, sizeof(*priv->card), GFP_KERNEL);
+	if (!priv->card)
+		return -ENOMEM;
+
 	priv->card_dev = kunit_device_register(test, "sound-soc-card-test");
 	priv->card_dev = get_device(priv->card_dev);
 	if (!priv->card_dev)
 		return -ENODEV;
 
-	priv->card = kunit_kzalloc(test, sizeof(*priv->card), GFP_KERNEL);
-	if (!priv->card)
-		return -ENOMEM;
-
 	priv->card->name = "soc-card-test";
 	priv->card->dev = priv->card_dev;
 	priv->card->owner = THIS_MODULE;
 
 	ret = snd_soc_register_card(priv->card);
-	if (!ret)
+	if (ret) {
+		put_device(priv->card_dev);
 		return ret;
+	}
 
 	return 0;
 }