Re: [PATCH] PM: Acquire device locks on suspend

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sat, 5 Jan 2008, Rafael J. Wysocki wrote:

> > Another thing to watch out for: Just in case somebody ends up calling
> > destroy_suspended_device(dev) from within dev's own resume method, you 
> > should interchange the resume_device() and the list_move_tail() 
> > calls in dpm_resume().
> 
> However, if we unregister them all at once after releasing pm_sleep_rwsem,
> that shouldn't be necessary, right?

It's still necessary, because destroy_suspended_device() still has to
move the device from one list to another.  You don't want it to end up 
on the dpm_locked list.

Alan Stern

_______________________________________________
linux-pm mailing list
linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linux-foundation.org/mailman/listinfo/linux-pm

[Index of Archives]     [Linux ACPI]     [Netdev]     [Ethernet Bridging]     [Linux Wireless]     [CPU Freq]     [Kernel Newbies]     [Fedora Kernel]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]

  Powered by Linux