Re: [PATCH] kernel: Return -EFAULT if copy_to_user() fails

[Christian Brauner]

On Mon, Mar 01, 2021 at 07:28:11PM +0800, Wang Qing wrote:
> The copy_to_user() function returns the number of bytes remaining to be
> copied, but we want to return -EFAULT if the copy doesn't complete.
> 
> Signed-off-by: Wang Qing <wangqing@xxxxxxxx>
> ---

Hey Wang,

Thanks for the patch. It looks like override_release() is called in
three places and all three places return -EFAULT correctly. They simply
treat any as EFAULT. So not sure this change buys us anything.

Christian