Re: [PATCH] firmware: add firmware to new device's devres list for second time cache

From: Greg KH
Date: Wed Oct 04 2017 - 03:24:40 EST

On Tue, Aug 22, 2017 at 03:52:46PM +0800, Kai-Heng Feng wrote:
> Currently, firmware will only be chached if assign_firmware_buf() gets
> called.
> When a device loses its power or a USB device gets plugged to another
> port under suspend, request_firmware() can still find cached firmware,
> but firmware name no longer associates with the new device's devres.
> So next time the system suspend, those firmware won't be cached.
> Hence, we should add the firmware name to the devres when the firmware
> is found in cache, to make the firmware cacheable next time.
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
> ---
> drivers/base/firmware_class.c | 4 ++++
> 1 file changed, 4 insertions(+)