Jiro, A recent static analysis run with CoverityScan identified a potential change in functionality with your recent commit "sched: check negative err value to safe one level of indent" that landed in linux-next.
The original path for case RTM_DELTFILTER would always goto errout, but your commit seems to goto errout only if err is non-zero zero and the err == 0 path falls through to the RTM_GETTFILTER case. I'm not sure if this is an intentional change in behaviour. From what I can make out, there is a missing goto errout before the fall-through to RTM_GETTFILTER. Colin