This was a typo, we didn't actually want to return zero.
Fixes: a61acbbe9cf8 ("drm/msm: Track "seqno" fences by idr")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/491145/
Link: https://lore.kernel.org/r/20220624184528.4036837-1-robdclark@gmail.com
 
                                                    INT_MAX, GFP_KERNEL);
        }
        if (submit->fence_id < 0) {
-               ret = submit->fence_id = 0;
+               ret = submit->fence_id;
                submit->fence_id = 0;
        }