Kernel upstream compile error at drivers/staging/media

[Greg KH]

On Wed, Sep 08, 2021 at 09:39:15AM +0000, Lafan Mining wrote:
> Hello!
> 
> I'm learning the Linux Kernel and currently faced troubles with building the upstream. I git clone'd source code of master and tried to make deb-pkg. I faced compile error:
> 
> drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c: In function ‘input_system_configure_channel_sensor’:
> drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c:1649:1: error: control reaches end of non-void function [-Werror=return-type]
> 1649 | }
> 
> What this error could be about and how to fix it? Maybe some wrong compilation flag is the cause?

Please update your kernel version, this should already be fixed.

What version exactly are you trying to build?

And do you have this hardware?  If not, just turn the configuration
option off.

thanks,

greg k-h