[PATCH v4 8/20] lsm: Refactor return value of LSM hook getprocattr

[Paul Moore]

On Jul 11, 2024 Xu Kuohai <xukuohai at huaweicloud.com> wrote:
> 
> To be consistent with most LSM hooks, convert the return value of
> hook getprocattr to 0 or a negative error code.
> 
> Before:
> - Hook getprocattr returns length of value on success or a negative
>   error code on failure.
> 
> After:
> - Hook getprocattr returns 0 on success or a negative error code on
>   failure. An output parameter @len is introduced to hold the
>   length of value on success.
> 
> Signed-off-by: Xu Kuohai <xukuohai at huawei.com>
> ---
>  fs/proc/base.c                |  5 ++++-
>  include/linux/lsm_hook_defs.h |  2 +-
>  include/linux/security.h      |  5 +++--
>  security/apparmor/lsm.c       |  7 +++++--
>  security/security.c           |  8 +++++---
>  security/selinux/hooks.c      | 16 +++++++++-------
>  security/smack/smack_lsm.c    | 11 ++++++-----
>  7 files changed, 33 insertions(+), 21 deletions(-)

The patch 07/20 comments also apply here.

--
paul-moore.com