[PATCH] staging: drivers: gpu: drm: mediatek: Fix warning: Using plain integer as NULL pointer in mtk_drm_gem.c

[Dipendra Khadka]

sparse reported following warking:

'''
drivers/gpu/drm/mediatek/mtk_drm_gem.c:290:27: warning: Using plain integer as NULL pointer
'''

This patch changes integer 0 to NULL.

Signed-off-by: Dipendra Khadka <kdipendra88 at gmail.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_gem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
index f8fd8b98c30e..885ce6ac7bad 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
@@ -287,6 +287,6 @@ void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
 		return;
 
 	vunmap(vaddr);
-	mtk_gem->kvaddr = 0;
+	mtk_gem->kvaddr = NULL;
 	kfree(mtk_gem->pages);
 }
-- 
2.43.0