On 14 August 2013 13:49, Xiaoguang Chen <chenxg.marvell@xxxxxxxxx> wrote: > Yes, "START (If STOP passed)", this is important, we don't have this > patch on our code base, So even Process B's STOP failed(as governor > enable flag is set to false by process A already ), it can still do > START operation, So my problem occurs. > My problem is that I see ondemand governor is started twice during > frequent governor switch and cpu hotplug stress test. > > The After seeing your patch for the return value checking, I think my > problem should not occur. > This issue really botherred me for a long time. :( Exactly, the problem was users of this API were abusing it as they didn't cared for its return value. I hope that is fixed widely now and in case some places are still left, they should be fixed as well. -- viresh -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
