amdgpu_fence_driver_start_ring() attempts to access
UVD instance 2 during setup, while the existing UVD
instance count only allows instances 0 and 1.
Increase AMDGPU_MAX_UVD_INSTANCES by one to avoid the
invalid array access.
Caught by UBSAN.
Signed-off-by: Timothy Pearson <tpear...@raptorengineering.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h
index 8b23a1b00c76..4a47cb570af7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h
@@ -31,7 +31,7 @@
#define AMDGPU_UVD_SESSION_SIZE (50*1024)
#define AMDGPU_UVD_FIRMWARE_OFFSET 256
-#define AMDGPU_MAX_UVD_INSTANCES 2
+#define AMDGPU_MAX_UVD_INSTANCES 3
#define AMDGPU_UVD_FIRMWARE_SIZE(adev) \
(AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(((const struct
common_firmware_header *)(adev)->uvd.fw->data)->ucode_size_bytes) + \
--
2.17.1
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