linux-kernel - [PATCH v2 2/2] kunit: avoid memory leak on device register error

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Message-ID: <20240418160039.69993-3-wander@redhat.com>
Date: Thu, 18 Apr 2024 13:00:38 -0300
From: Wander Lairson Costa <wander@...hat.com>
To: Brendan Higgins <brendan.higgins@...ux.dev>,
	David Gow <davidgow@...gle.com>,
	Rae Moar <rmoar@...gle.com>,
	Matti Vaittinen <mazziesaccount@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Maxime Ripard <mripard@...nel.org>,
	Shuah Khan <skhan@...uxfoundation.org>,
	linux-kselftest@...r.kernel.org (open list:KERNEL UNIT TESTING FRAMEWORK (KUnit)),
	kunit-dev@...glegroups.com (open list:KERNEL UNIT TESTING FRAMEWORK (KUnit)),
	linux-kernel@...r.kernel.org (open list)
Cc: Wander Lairson Costa <wander@...hat.com>
Subject: [PATCH v2 2/2] kunit: avoid memory leak on device register error

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

Signed-off-by: Wander Lairson Costa <wander@...hat.com>
Fixes: d03c720e03bd ("kunit: Add APIs for managing devices")
---
 lib/kunit/device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/kunit/device.c b/lib/kunit/device.c
index 25c81ed465fb..d8c09dcb3e79 100644
--- a/lib/kunit/device.c
+++ b/lib/kunit/device.c
@@ -131,6 +131,7 @@ static struct kunit_device *kunit_device_register_internal(struct kunit *test,
 	err = device_register(&kunit_dev->dev);
 	if (err) {
 		put_device(&kunit_dev->dev);
+		kfree(kunit_dev);
 		return ERR_PTR(err);
 	}
 
-- 
2.44.0