diff mbox series

[v3] media: hi846: Fix memleak in hi846_init_controls()

Message ID 20230327115809.297633-1-harperchen1110@gmail.com
State Accepted
Commit 2649c1a20e8e399ee955d0e22192f9992662c3d2
Headers show
Series [v3] media: hi846: Fix memleak in hi846_init_controls() | expand

Commit Message

Wei Chen March 27, 2023, 11:58 a.m. UTC 
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.

Fixes: e8c0882685f9 ("media: i2c: add driver for the SK Hynix Hi-846 8M pixel camera")
Signed-off-by: Wei Chen <harperchen1110@gmail.com>
---
Changes in v2:
 - move v4l2_ctrl_handler_free to error tag
 - handle memleak in other failure positions
Changes in v3:
 - add fixes commit tag

 drivers/media/i2c/hi846.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/i2c/hi846.c b/drivers/media/i2c/hi846.c
index 7c61873b7198..f86997a261f5 100644
--- a/drivers/media/i2c/hi846.c
+++ b/drivers/media/i2c/hi846.c
@@ -1472,21 +1472,26 @@  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);
-		return ctrl_hdlr->error;
+		ret = ctrl_hdlr->error;
+		goto error;
 	}
 
 	ret = v4l2_fwnode_device_parse(&client->dev, &props);
 	if (ret)
-		return ret;
+		goto error;
 
 	ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &hi846_ctrl_ops,
 					      &props);
 	if (ret)
-		return ret;
+		goto error;
 
 	hi846->sd.ctrl_handler = ctrl_hdlr;

 	return 0;
+
+error:
+	v4l2_ctrl_handler_free(ctrl_hdlr);
+	return ret;
 }
 
 static int hi846_set_video_mode(struct hi846 *hi846, int fps)