From: Roman Li <Roman.Li@xxxxxxx>
[Why]
In fill_plane_buffer_attributes() we calculate chroma/luma
assuming that the surface_pixel_format is always valid.
If it's not the case, there's a risk of divide by zero error.
[How]
Check if format valid before calculating pixel format attributes
Change-Id: I6bbc31b03ef35a3b8f8469ab2a633895f2590cef
Signed-off-by: Roman Li <Roman.Li@xxxxxxx>
Reviewed-by: David Francis <David.Francis@xxxxxxx>
Acked-by: Bhawanpreet Lakha <Bhawanpreet Lakha@xxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 86423244ffc0..1b1151838f0f 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2657,7 +2657,7 @@ fill_plane_buffer_attributes(struct amdgpu_device *adev,
address->type = PLN_ADDR_TYPE_GRAPHICS;
address->grph.addr.low_part = lower_32_bits(afb->address);
address->grph.addr.high_part = upper_32_bits(afb->address);
- } else {
+ } else if (format < SURFACE_PIXEL_FORMAT_INVALID) {
uint64_t chroma_addr = afb->address + fb->offsets[1];
plane_size->video.luma_size.x = 0;
--
2.17.1
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