On Tue, Sep 11, 2018 at 8:59 PM kbuild test robot
<fengguang.wu@xxxxxxxxx> wrote:
>
> From: kbuild test robot <fengguang.wu@xxxxxxxxx>
>
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c:771:1-3: WARNING: PTR_ERR_OR_ZERO can be used
>
>
> Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
>
> Generated by: scripts/coccinelle/api/ptr_ret.cocci
>
> Fixes: e498eb713604 ("drm/amd/display: Add support for hw_state logging via debugfs")
> CC: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
> Signed-off-by: kbuild test robot <fengguang.wu@xxxxxxxxx>
Applied. thanks!
Alex
> ---
>
> tree: git://people.freedesktop.org/~agd5f/linux.git drm-next-4.20-wip
> head: d8de8260a45aae8f74af77eae9a162bdc0ed48d2
> commit: e498eb7136042aa9a352b1039c678537f4694158 [220/310] drm/amd/display: Add support for hw_state logging via debugfs
>
> amdgpu_dm_debugfs.c | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
> @@ -768,8 +768,5 @@ int dtn_debugfs_init(struct amdgpu_devic
> adev,
> &dtn_log_fops);
>
> - if (IS_ERR(ent))
> - return PTR_ERR(ent);
> -
> - return 0;
> + return PTR_ERR_OR_ZERO(ent);
> }
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