[PATCH] drm/sun4i: mixer: Fix layer init code

[Jernej Skrabec]

Code refactoring dropped extra NULL sentinel entry at the end of the drm
planes array.

Add it back.

Reported-by: Chen-Yu Tsai <wens at kernel.org>
Closes: https://lore.kernel.org/linux-sunxi/CAGb2v65wY2pF6sR+0JgnpLa4ysvjght5hAKDa1RUyo=zEKXreg@mail.gmail.com/
Fixes: 5fd711adc0ba ("drm/sun4i: layer: move num of planes calc out of layer code")
Signed-off-by: Jernej Skrabec <jernej.skrabec at gmail.com>
---
 drivers/gpu/drm/sun4i/sun8i_mixer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index ce9c155bfad7..02acc7cbdb97 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -321,7 +321,7 @@ static struct drm_plane **sun8i_layers_init(struct drm_device *drm,
 	unsigned int phy_index;
 	int i;
 
-	planes = devm_kcalloc(drm->dev, plane_cnt, sizeof(*planes), GFP_KERNEL);
+	planes = devm_kcalloc(drm->dev, plane_cnt + 1, sizeof(*planes), GFP_KERNEL);
 	if (!planes)
 		return ERR_PTR(-ENOMEM);
 
-- 
2.53.0