media: rj54n1cb0c: Fix memleak in rj54n1_probe()

[ Upstream commit fda55673ecdabf25f5ecc61b5ab17239257ac252 ]

rj54n1_probe() won't clean all the allocated resources in fail
path, which may causes the memleaks. Add v4l2_ctrl_handler_free() to
prevent memleak.

Fixes: f187352 ("media: i2c: Copy rj54n1cb0c soc_camera sensor driver")
Signed-off-by: Zhang Shurong <zhang_shurong@foxmail.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Ulrich Hecht <uli@kernel.org>

Author: ZhangShurong

drivers/media/i2c/rj54n1cb0c.c

@@ -1333,10 +1333,13 @@ static int rj54n1_probe(struct i2c_client *client,
 			V4L2_CID_GAIN, 0, 127, 1, 66);
 	v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops,
 			V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
-	rj54n1->subdev.ctrl_handler = &rj54n1->hdl;
-	if (rj54n1->hdl.error)
-		return rj54n1->hdl.error;
 
+	if (rj54n1->hdl.error) {
+		ret = rj54n1->hdl.error;
+		goto err_free_ctrl;
+	}
+
+	rj54n1->subdev.ctrl_handler = &rj54n1->hdl;
 	rj54n1->clk_div		= clk_div;
 	rj54n1->rect.left	= RJ54N1_COLUMN_SKIP;
 	rj54n1->rect.top	= RJ54N1_ROW_SKIP;