Hi Anand, On 2016년 04월 11일 13:01, Anand Moon wrote: > Hi Chanwoo, > > On 11 April 2016 at 07:46, Chanwoo Choi <cw00.choi@xxxxxxxxxxx> wrote: >> Hi Anand, >> >> On 2016년 04월 09일 03:24, Chanwoo Choi wrote: >>> Hi Anand, >>> >>> On Sat, Apr 9, 2016 at 3:11 AM, Anand Moon <linux.amoon@xxxxxxxxx> wrote: >>>> Hi Chanwoo, >>>> >> >> [snip] >> >>>>> >>>> >>>> I am observing following deadlock. Both on Odroid U3 and Odroid XU4. >>> >>> Thanks for your test. I'll test it again and fix it. >> >> This possible recursive locking is fixed with following diff: >> >> Thanks for your report. I'll fix it on next patchset[1] (v9). >> [1] https://lkml.org/lkml/2016/4/8/14 >> >> >> diff --git a/drivers/devfreq/governor_passive.c b/drivers/devfreq/governor_passive.c >> index 28a9ae32d330..a4b0b02ee797 100644 >> --- a/drivers/devfreq/governor_passive.c >> +++ b/drivers/devfreq/governor_passive.c >> @@ -102,7 +102,7 @@ static int update_devfreq_passive(struct devfreq *devfreq, unsigned long freq) >> if (!devfreq->governor) >> return -EINVAL; >> >> - mutex_lock(&devfreq->lock); >> + mutex_lock_nested(&devfreq->lock, SINGLE_DEPTH_NESTING); >> >> ret = devfreq->governor->get_target_freq(devfreq, &freq); >> if (ret < 0) >> >> Best Regards, >> Chanwoo Choi >> > > Thanks you for these patches on devfreq. > These changes fix the warning. > > Tested-by: Anand Moon <linux.amoon@xxxxxxxxx> > > Tested on Odroid XU4 and Odroid U3. Thanks for your test and report. Best Regards, Chanwoo Choi -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
