[ Upstream commit 40f43730f4 ] The drmm_encoder_alloc() function returns error pointers. It never returns NULL. Fix the check accordingly. Fixes: 7a1adbd239 ("drm: rcar-du: Use drmm_encoder_alloc() to manage encoder") Signed-off-by: Dan Carpenter <error27@gmail.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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