[PATCH] drm/amdgpu/userq: assign an error code for invalid userq va

[Prike Liang]

It should return an error code if userq VA validation fails.

Fixes: 9e46b8bb0539 ("drm/amdgpu: validate userq buffer virtual
address and size")

Signed-off-by: Prike Liang <prike.li...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
index 5ab4ee26b825..3bbe1001fda1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
@@ -71,6 +71,7 @@ int amdgpu_userq_input_va_validate(struct amdgpu_vm *vm, u64 
addr,
                return 0;
        }
 
+       r = -EINVAL;
 out_err:
        amdgpu_bo_unreserve(vm->root.bo);
        return r;
@@ -508,6 +509,7 @@ amdgpu_userq_create(struct drm_file *filp, union 
drm_amdgpu_userq *args)
        if (amdgpu_userq_input_va_validate(&fpriv->vm, args->in.queue_va, 
args->in.queue_size) ||
            amdgpu_userq_input_va_validate(&fpriv->vm, args->in.rptr_va, 
AMDGPU_GPU_PAGE_SIZE) ||
            amdgpu_userq_input_va_validate(&fpriv->vm, args->in.wptr_va, 
AMDGPU_GPU_PAGE_SIZE)) {
+               r = -EINVAL;
                kfree(queue);
                goto unlock;
        }
-- 
2.34.1