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

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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>
This commit is contained in:
Lu Yao 2026-01-06 10:37:12 +08:00 committed by Alex Deucher
parent c7fc0f3723
commit 2f2a72de67
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
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@ -1880,7 +1880,12 @@ int amdgpu_display_get_scanout_buffer(struct drm_plane *plane,
struct drm_scanout_buffer *sb)
{
struct amdgpu_bo *abo;
struct drm_framebuffer *fb = plane->state->fb;
struct drm_framebuffer *fb;
if (drm_drv_uses_atomic_modeset(plane->dev))
fb = plane->state->fb;
else
fb = plane->fb;
if (!fb)
return -EINVAL;