From: Srinivasan Shanmugam <[email protected]>

[ Upstream commit b8d55a90fd55b767c25687747e2b24abd1ef8680 ]

Return invalid error code -EINVAL for invalid block id.

Fixes the below:

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:1183 
amdgpu_ras_query_error_status_helper() error: we previously assumed 'info' 
could be null (see line 1176)

Suggested-by: Hawking Zhang <[email protected]>
Cc: Tao Zhou <[email protected]>
Cc: Hawking Zhang <[email protected]>
Cc: Christian König <[email protected]>
Cc: Alex Deucher <[email protected]>
Signed-off-by: Srinivasan Shanmugam <[email protected]>
Reviewed-by: Hawking Zhang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 63fb4cd85e53..4a3726bb6da1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -1174,6 +1174,9 @@ static int amdgpu_ras_query_error_status_helper(struct 
amdgpu_device *adev,
        enum amdgpu_ras_block blk = info ? info->head.block : 
AMDGPU_RAS_BLOCK_COUNT;
        struct amdgpu_ras_block_object *block_obj = NULL;
 
+       if (blk == AMDGPU_RAS_BLOCK_COUNT)
+               return -EINVAL;
+
        if (error_query_mode == AMDGPU_RAS_INVALID_ERROR_QUERY)
                return -EINVAL;
 
-- 
2.43.0

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