2022-12-22 19:32:34

by Stefan Wahren

[permalink] [raw]
Subject: Re: [PATCH v2 1/4] staging: vc04_services: Stop leaking platform device on error path

Hi Umang,

Am 22.12.22 um 20:14 schrieb Umang Jain:
> vchiq driver registers the child platform devices in
> vchiq_register_child(). However, in the registration error code path,
> currently the driver is leaking platform devices by not destroying the
> return platform device. Plug this leak using platform_device_put() as
> mentioned in the documentation for platform_device_register().
>
> Signed-off-by: Umang Jain <[email protected]>
> ---
> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
> index dc33490ba7fb..fc7ea7ba97b2 100644
> --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
> +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
> @@ -1779,6 +1779,7 @@ vchiq_register_child(struct platform_device *pdev, const char *name)
> child = platform_device_register_full(&pdevinfo);
> if (IS_ERR(child)) {
> dev_warn(&pdev->dev, "%s not registered\n", name);
> + platform_device_put(child);
why should we free an error?
> child = NULL;
> }
>