LinuxTV Patchwork [02/14] media: ov6650: Fix control handler not freed on init error

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Submitter Janusz Krzysztofik
Date April 8, 2019, 9:42 p.m.
Message ID <20190408214242.9603-3-jmkrzyszt@gmail.com>
Download mbox | patch
Permalink /patch/55561/
State New
Delegated to: Sakari Ailus
Headers show

Comments

Janusz Krzysztofik - April 8, 2019, 9:42 p.m.
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(-)

Patch

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;
 }

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