linux-kernel - [PATCH] media: hi846: Fix memleak in hi846_init

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Message-Id: <20230324172427.3416342-1-harperchen1110@gmail.com>
Date:   Fri, 24 Mar 2023 17:24:27 +0000
From:   Wei Chen <harperchen1110@...il.com>
To:     martink@...teo.de
Cc:     mchehab@...nel.org, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org, Wei Chen <harperchen1110@...il.com>
Subject: [PATCH] media: hi846: Fix memleak in hi846_init_controls()

hi846_init_controls doesn't clean the allocated ctrl_hdlr
in case there is a failure, which causes memleak. Add
v4l2_ctrl_handler_free to free the resource properly.

Signed-off-by: Wei Chen <harperchen1110@...il.com>
---
 drivers/media/i2c/hi846.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/i2c/hi846.c b/drivers/media/i2c/hi846.c
index 7c61873b7198..c45a6511d2c1 100644
--- a/drivers/media/i2c/hi846.c
+++ b/drivers/media/i2c/hi846.c
@@ -1472,6 +1472,7 @@ static int hi846_init_controls(struct hi846 *hi846)
 	if (ctrl_hdlr->error) {
 		dev_err(&client->dev, "v4l ctrl handler error: %d\n",
 			ctrl_hdlr->error);
+		v4l2_ctrl_handler_free(ctrl_hdlr);
 		return ctrl_hdlr->error;
 	}
 
-- 
2.25.1