[PATCH] udmabuf: Fix NULL vs IS_ERR() checking

[Miaoqian Lin]

The get_sg_table() function does not return NULL.
It returns error pointers.

Signed-off-by: Miaoqian Lin <linmq...@gmail.com>
---
 drivers/gpu/drm/arm/malidp_planes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/arm/malidp_planes.c 
b/drivers/gpu/drm/arm/malidp_planes.c
index 0562bdaac00c..2ef8feae8c4e 100644
--- a/drivers/gpu/drm/arm/malidp_planes.c
+++ b/drivers/gpu/drm/arm/malidp_planes.c
@@ -348,7 +348,7 @@ static bool malidp_check_pages_threshold(struct 
malidp_plane_state *ms,
                else
                        sgt = obj->funcs->get_sg_table(obj);
 
-               if (!sgt)
+               if (IS_ERR(sgt))
                        return false;
 
                sgl = sgt->sgl;
-- 
2.17.1