[PATCH] drm/tegra: Use PTR_ERR_OR_ZERO() to simplify code

[Thierry Reding]

On Tue, Dec 15, 2020 at 03:00:53PM +0800, Tian Tao wrote:
> Fixes coccicheck warning:
> drivers/gpu/drm/tegra/drm.c:350:1-3: WARNING: PTR_ERR_OR_ZERO can be used
> 
> Signed-off-by: Tian Tao <tiantao6 at hisilicon.com>
> ---
>  drivers/gpu/drm/tegra/drm.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)

This coccinelle patch was recently removed, so I won't pick this up.

Thierry
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