Re: [PATCH v6 01/11] firmware: raspberrypi: Keep count of all consumers
From: Stephen Boyd
Date: Sun Dec 13 2020 - 00:15:05 EST
Quoting Nicolas Saenz Julienne (2020-12-11 08:47:50)
> When unbinding the firmware device we need to make sure it has no
> consumers left. Otherwise we'd leave them with a firmware handle
> pointing at freed memory.
>
> Keep a reference count of all consumers and introduce rpi_firmware_put()
> which will permit automatically decrease the reference count upon
> unbinding consumer drivers.
>
> Suggested-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx>
> Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
>
> ---
Reviewed-by: Stephen Boyd <sboyd@xxxxxxxxxx>