On 07-01-20, 15:53, qiwuchen55@xxxxxxxxx wrote: > From: chenqiwu <chenqiwu@xxxxxxxxxx> > > The cpufreq_reboot_notifier_evt() call cpufreq_cpu_get() to get the > cpufreq policy of cpu0, meanwhile, it also increments the kobject > reference count to mark it busy. However, a corresponding call of > cpufreq_cpu_put() is ignored to decrement the kobject reference count > back, which may lead to a potential stuck risk that the cpuhp thread > deadly waits for dropping of kobject refcount when cpufreq policy free. > > With this patch, the cpuhp thread can be easily exercised by attempting > to force an unbind of the CPUfreq driver. > > Signed-off-by: chenqiwu <chenqiwu@xxxxxxxxxx> > --- > changes in v3: > - Rewrite title and commit message. > --- > drivers/cpufreq/s3c2416-cpufreq.c | 12 +++++++++++- > drivers/cpufreq/s5pv210-cpufreq.c | 11 ++++++++++- > 2 files changed, 21 insertions(+), 2 deletions(-) Applied. Thanks. -- viresh
