drm/amdgpu: fix drm panic null pointer when driver not support atomic

[ Upstream commit 9cb6278b44 ]

When driver not support atomic, fb using plane->fb rather than
plane->state->fb.

Fixes: fe151ed7af ("drm/amdgpu: add generic display panic helper code")
Signed-off-by: Lu Yao <yaolu@kylinos.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 2f2a72de67)
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lu Yao 2026-01-06 10:37:12 +08:00 • committed by Greg Kroah-Hartman
commit a1aedf4053