[PATCH 3/8] ASoC: soc-topology-test: Check return value of kunit_device_register()

["Amadeusz Sławiński" <amade@asmblr.net>]

Call to kunit_device_register() can fail. Check return result of
register call. While at it introduce helper variable so that if it fails
put_device is called on properly initialized variable.

Fixes: e57cdff0ddc4 ("ASoC: topology: Replace fake root_device with kunit_device in tests")
Signed-off-by: Amadeusz Sławiński <amade@asmblr.net>
---
 sound/soc/soc-topology-test.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-topology-test.c b/sound/soc/soc-topology-test.c
index bcfb52061133..8df845a196fe 100644
--- a/sound/soc/soc-topology-test.c
+++ b/sound/soc/soc-topology-test.c
@@ -24,8 +24,12 @@ static struct device *test_dev;
 
 static int snd_soc_tplg_test_init(struct kunit *test)
 {
-	test_dev = kunit_device_register(test, "sound-soc-topology-test");
-	test_dev = get_device(test_dev);
+	struct device *dev;
+
+	dev = kunit_device_register(test, "sound-soc-topology-test");
+	if (IS_ERR(dev))
+		return PTR_ERR(dev);
+	test_dev = get_device(dev);
 	if (!test_dev)
 		return -ENODEV;
 
-- 
2.56.0