Re: [BUG] vt6655: A possible sleep-in-atomic bug in vt6655_suspend

[Jia-Ju Bai]

Okay, I will send a patch :)


Thanks,
Jia-Ju Bai

On 2017/10/9 13:43, Greg KH wrote:
> On Mon, Oct 09, 2017 at 09:10:28AM +0800, Jia-Ju Bai wrote:
> > According to device_main.c, the driver may sleep under a spinlock,
> > and the function call path is:
> > vt6655_suspend (acquire the spinlock)
> >    pci_set_power_state
> >      __pci_start_power_transition (drivers/pci/pci.c)
> >        msleep --> may sleep
> >
> > A possible fix is to replace msleep with mdelay in
> > __pci_start_power_transition in drivers/pci/pci.c.
> Patches are usually best to send in for things that you find like this.
>
> thanks,
>
> greg k-h