[PATCH next] drm: adp: Fix NULL vs IS_ERR() check in adp_plane_new()

[Dan Carpenter]

The __drmm_universal_plane_alloc() function doesn't return NULL, it
returns error pointers.  Update the check to match.

Fixes: 332122eba628 ("drm: adp: Add Apple Display Pipe driver")
Signed-off-by: Dan Carpenter <dan.carpen...@linaro.org>
---
 drivers/gpu/drm/adp/adp_drv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/adp/adp_drv.c b/drivers/gpu/drm/adp/adp_drv.c
index 0a39abdc9238..db36807005a6 100644
--- a/drivers/gpu/drm/adp/adp_drv.c
+++ b/drivers/gpu/drm/adp/adp_drv.c
@@ -232,9 +232,9 @@ static struct drm_plane *adp_plane_new(struct 
adp_drv_private *adp)
                                             ALL_CRTCS, &adp_plane_funcs,
                                             plane_formats, 
ARRAY_SIZE(plane_formats),
                                             NULL, DRM_PLANE_TYPE_PRIMARY, 
"plane");
-       if (!plane) {
+       if (IS_ERR(plane)) {
                drm_err(drm, "failed to allocate plane");
-               return ERR_PTR(-ENOMEM);
+               return plane;
        }
 
        drm_plane_helper_add(plane, &adp_plane_helper_funcs);
-- 
2.47.2