[PATCH v3 2/2] kunit: avoid memory leak on device register error

[Wander Lairson Costa]

If the device register fails, free the allocated memory before
returning.

Signed-off-by: Wander Lairson Costa <wander@xxxxxxxxxx>
Fixes: d03c720e03bd ("kunit: Add APIs for managing devices")
---
 lib/kunit/device.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/lib/kunit/device.c b/lib/kunit/device.c
index 25c81ed465fb..bc2e2032e505 100644
--- a/lib/kunit/device.c
+++ b/lib/kunit/device.c
@@ -119,10 +119,8 @@ static struct kunit_device *kunit_device_register_internal(struct kunit *test,
 	kunit_dev->owner = test;
 
 	err = dev_set_name(&kunit_dev->dev, "%s.%s", test->name, name);
-	if (err) {
-		kfree(kunit_dev);
-		return ERR_PTR(err);
-	}
+	if (err)
+		goto error;
 
 	kunit_dev->dev.release = kunit_device_release;
 	kunit_dev->dev.bus = &kunit_bus_type;
@@ -131,7 +129,7 @@ static struct kunit_device *kunit_device_register_internal(struct kunit *test,
 	err = device_register(&kunit_dev->dev);
 	if (err) {
 		put_device(&kunit_dev->dev);
-		return ERR_PTR(err);
+		goto error;
 	}
 
 	kunit_dev->dev.dma_mask = &kunit_dev->dev.coherent_dma_mask;
@@ -140,6 +138,9 @@ static struct kunit_device *kunit_device_register_internal(struct kunit *test,
 	kunit_add_action(test, device_unregister_wrapper, &kunit_dev->dev);
 
 	return kunit_dev;
+error:
+	kfree(kunit_dev);
+	return ERR_PTR(err);
 }
 
 /*
-- 
2.44.0