linux-kernel - Re: [Nouveau] [PATCH] drm/nouveau: remove checks for return value of debugfs functions

Open Source and information security mailing list archives

Date:   Wed, 19 Feb 2020 15:39:20 +1000
From:   Ben Skeggs <skeggsb@...il.com>
To:     Wambui Karuga <wambui.karugax@...il.com>
Cc:     Ben Skeggs <bskeggs@...hat.com>, Dave Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        ML nouveau <nouveau@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>,
        ML dri-devel <dri-devel@...ts.freedesktop.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [Nouveau] [PATCH] drm/nouveau: remove checks for return value of
 debugfs functions

On Wed, 19 Feb 2020 at 03:28, Wambui Karuga <wambui.karugax@...il.com> wrote:
>
> As there is no need to check for the return value of debugfs_create_file
> and drm_debugfs_create_files, remove unnecessary checks and error
> handling in nouveau_drm_debugfs_init.
Thanks!

>
> Signed-off-by: Wambui Karuga <wambui.karugax@...il.com>
> ---
>  drivers/gpu/drm/nouveau/nouveau_debugfs.c | 20 ++++++++------------
>  1 file changed, 8 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
> index 7dfbbbc1beea..15a3d40edf02 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
> @@ -222,22 +222,18 @@ nouveau_drm_debugfs_init(struct drm_minor *minor)
>  {
>         struct nouveau_drm *drm = nouveau_drm(minor->dev);
>         struct dentry *dentry;
> -       int i, ret;
> +       int i;
>
>         for (i = 0; i < ARRAY_SIZE(nouveau_debugfs_files); i++) {
> -               dentry = debugfs_create_file(nouveau_debugfs_files[i].name,
> -                                            S_IRUGO | S_IWUSR,
> -                                            minor->debugfs_root, minor->dev,
> -                                            nouveau_debugfs_files[i].fops);
> -               if (!dentry)
> -                       return -ENOMEM;
> +               debugfs_create_file(nouveau_debugfs_files[i].name,
> +                                   S_IRUGO | S_IWUSR,
> +                                   minor->debugfs_root, minor->dev,
> +                                   nouveau_debugfs_files[i].fops);
>         }
>
> -       ret = drm_debugfs_create_files(nouveau_debugfs_list,
> -                                      NOUVEAU_DEBUGFS_ENTRIES,
> -                                      minor->debugfs_root, minor);
> -       if (ret)
> -               return ret;
> +       drm_debugfs_create_files(nouveau_debugfs_list,
> +                                NOUVEAU_DEBUGFS_ENTRIES,
> +                                minor->debugfs_root, minor);
>
>         /* Set the size of the vbios since we know it, and it's confusing to
>          * userspace if it wants to seek() but the file has a length of 0
> --
> 2.25.0
>
> _______________________________________________
> Nouveau mailing list
> Nouveau@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/nouveau

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives