[PATCH v2] vga_switcheroo: Fix impossible judgment condition

[Dan Carpenter]

On Thu, Oct 26, 2023 at 05:18:04PM +0800, Su Hui wrote:
> 'id' is enum type like unsigned int, so it will never be less than zero.
> It's better to check VGA_SWITCHEROO_UNKNOWN_ID too.
> 
> Fixes: 4aaf448fa975 ("vga_switcheroo: set audio client id according to bound GPU id")
> Signed-off-by: Su Hui <suhui at nfschina.com>
> ---
> v2:
>  - add check of VGA_SWITCHEROO_UNKNOWN_ID(Dan's suggestion). 
> 
> By the way, all functions of 'get_client_id' will never return error code
> or VGA_SWITCHEROO_UNKNOWN_ID，should we remove this check or keep it for
> future.
> 

Thanks!

Reviewed-by: Dan Carpenter <dan.carpenter at linaro.org>

regards,
dan carpenter