Am Sonntag, dem 26.03.2023 um 09:27 +0000 schrieb Wei Chen:
> 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@xxxxxxxxx>
Reviewed-by: Martin Kepplinger <martin.kepplinger@xxxxxxx>
thanks,
martin
> ---
> Changes in v2:
> - move v4l2_ctrl_handler_free to error tag
> - handle memleak in other failure positions
>
> drivers/media/i2c/hi846.c | 11 ++++++++---
> 1 file changed, 8 insertions(+), 3 deletions(-)
>
> 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)
