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From: Janusz Krzysztofik <jmkrzyszt@gmail.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
	Janusz Krzysztofik <jmkrzyszt@gmail.com>,
	stable@vger.kernel.org
Subject: [PATCH v2 2/9] media: ov6650: Fix control handler not freed on init error
Date: Tue, 21 May 2019 00:50:00 +0200
Message-ID: <20190520225007.2308-3-jmkrzyszt@gmail.com> (raw)
In-Reply-To: <20190520225007.2308-1-jmkrzyszt@gmail.com>

Since commit afd9690c72c3 ("[media] ov6650: convert to the control
framework"), if an error occurs during initialization of a control
handler, resources possibly allocated to the handler are not freed
before device initialiaton is aborted.  Fix it.

Fixes: afd9690c72c3 ("[media] ov6650: convert to the control framework")
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: stable@vger.kernel.org
---
 drivers/media/i2c/ov6650.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/media/i2c/ov6650.c b/drivers/media/i2c/ov6650.c
index a3d00afcb0c8..007f0ca24913 100644
--- a/drivers/media/i2c/ov6650.c
+++ b/drivers/media/i2c/ov6650.c
@@ -992,8 +992,10 @@ static int ov6650_probe(struct i2c_client *client,
 			V4L2_CID_GAMMA, 0, 0xff, 1, 0x12);
 
 	priv->subdev.ctrl_handler = &priv->hdl;
-	if (priv->hdl.error)
-		return priv->hdl.error;
+	if (priv->hdl.error) {
+		ret = priv->hdl.error;
+		goto ectlhdlfree;
+	}
 
 	v4l2_ctrl_auto_cluster(2, &priv->autogain, 0, true);
 	v4l2_ctrl_auto_cluster(3, &priv->autowb, 0, true);
@@ -1012,8 +1014,10 @@ static int ov6650_probe(struct i2c_client *client,
 	priv->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 
 	ret = v4l2_async_register_subdev(&priv->subdev);
-	if (ret)
-		v4l2_ctrl_handler_free(&priv->hdl);
+	if (!ret)
+		return 0;
+ectlhdlfree:
+	v4l2_ctrl_handler_free(&priv->hdl);
 
 	return ret;
 }
-- 
2.21.0


  parent reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-20 22:49 [PATCH v2 0/9] media: ov6650: A collection of fixes Janusz Krzysztofik
2019-05-20 22:49 ` [PATCH v2 1/9] media: ov6650: Fix MODDULE_DESCRIPTION Janusz Krzysztofik
2019-05-21  5:15   ` Greg KH
2019-05-21 17:55     ` Janusz Krzysztofik
2019-05-20 22:50 ` Janusz Krzysztofik [this message]
2019-05-20 22:50 ` [PATCH v2 3/9] media: ov6650: Fix crop rectangle alignment not passed back Janusz Krzysztofik
2019-05-20 22:50 ` [PATCH v2 4/9] media: ov6650: Fix incorrect use of JPEG colorspace Janusz Krzysztofik
2019-05-20 22:50 ` [PATCH v2 5/9] media: ov6650: Fix some format attributes not under control Janusz Krzysztofik
2019-05-20 22:50 ` [PATCH v2 6/9] media: ov6650: Fix .get_fmt() V4L2_SUBDEV_FORMAT_TRY support Janusz Krzysztofik
2019-05-20 22:50 ` [PATCH v2 7/9] media: ov6650: Fix default format not applied on device probe Janusz Krzysztofik
2019-05-20 22:50 ` [PATCH v2 8/9] media: ov6650: Fix stored frame format not in sync with hardware Janusz Krzysztofik
2019-05-20 22:50 ` [PATCH v2 9/9] media: ov6650: Fix stored crop rectangle " Janusz Krzysztofik

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