drm/amdgpu/gfx11: unlock on error in gfx_v11_0_kiq_resume()

Add a missing amdgpu_bo_unreserve(ring->mqd_obj) to an error path in
gfx_v11_0_kiq_resume().

Fixes: 3d879e81 ("drm/amdgpu: add init support for GFX11 (v2)")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c

@@ -4330,8 +4330,10 @@ static int gfx_v11_0_kiq_resume(struct amdgpu_device *adev)
 		return r;
 
 	r = amdgpu_bo_kmap(ring->mqd_obj, (void **)&ring->mqd_ptr);
-	if (unlikely(r != 0))
+	if (unlikely(r != 0)) {
+		amdgpu_bo_unreserve(ring->mqd_obj);
 		return r;
+	}
 
 	gfx_v11_0_kiq_init_queue(ring);
 	amdgpu_bo_kunmap(ring->mqd_obj);