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f6f5e39a3f
[ Upstream commit 3b9a33235c773c7a3768060cf1d2cf8a9153bc37 ]
Instead of using state->fb->obj[0] directly, get object from framebuffer
by calling drm_gem_fb_get_obj() and return error code when object is
null to avoid using null object of framebuffer.
Fixes: 5d945cbcd4 ("drm/amd/display: Create a file dedicated to planes")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 73dd0ad9e5dad53766ea3e631303430116f834b3)
Signed-off-by: Sasha Levin <sashal@kernel.org>