From: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
Date: Thu, 5 Dec 2024 02:06:21 +0000 (+0900)
Subject: media: platform: allgro-dvt: unregister v4l2_device on the error path
X-Git-Tag: v6.12.23~391
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0a72629ccecad4ecc3d60132d82f5098077b97a;p=thirdparty%2Fkernel%2Fstable.git

media: platform: allgro-dvt: unregister v4l2_device on the error path

[ Upstream commit c2b96a6818159fba8a3bcc38262da9e77f9b3ec7 ]

In allegro_probe(), the v4l2 device is not unregistered in the error
path, which results in a memory leak. Fix it by calling
v4l2_device_unregister() before returning error.

Fixes: d74d4e2359ec ("media: allegro: move driver out of staging")
Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
Reviewed-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/media/platform/allegro-dvt/allegro-core.c b/drivers/media/platform/allegro-dvt/allegro-core.c
index 88c36eb6174ad..9ca4e2f94647b 100644
--- a/drivers/media/platform/allegro-dvt/allegro-core.c
+++ b/drivers/media/platform/allegro-dvt/allegro-core.c
@@ -3914,6 +3914,7 @@ static int allegro_probe(struct platform_device *pdev)
 	if (ret < 0) {
 		v4l2_err(&dev->v4l2_dev,
 			 "failed to request firmware: %d\n", ret);
+		v4l2_device_unregister(&dev->v4l2_dev);
 		return ret;
 	}