[6.0]pkt_sched: Fix sch_sfq vs tcf_bind_filter oops
Issue
- In packet scheduler function 'SFQ qdisc', the SFQ class has no 'bind_tcf' method. Then, if a filter added with the classid parameter to the SFQ, kernel will hang-up because the 'bind_tcf' pointer is null. Additionally, a similar problem concerning 'leaf' method exists.
Environment
- Red Hat Enterprise Linux 6.0GA
- Architecture: x86_64
- Kernel Version: kernel-2.6.32-71.el6
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