Re: [PATCH v4] cachefiles: fix error return code in cachefiles_ondemand_copen()

[Gao Xiang]

On Fri, Aug 26, 2022 at 10:35:15AM +0800, Sun Ke wrote:
> The cache_size field of copen is specified by the user daemon.
> If cache_size < 0, then the OPEN request is expected to fail,
> while copen itself shall succeed. However, returning 0 is indeed
> unexpected when cache_size is an invalid error code.
> 
> Fix this by returning error when cache_size is an invalid error code.
> 
> Fixes: c8383054506c ("cachefiles: notify the user daemon when looking up cookie")
> Signed-off-by: Sun Ke <sunke32@xxxxxxxxxx>
> Suggested-by: Jeffle Xu <jefflexu@xxxxxxxxxxxxxxxxx>
> Suggested-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Reviewed-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>

Thanks,
Gao Xiang