Re: [PATCH v4 0/3] uio: fix potential crash bug

[Xiubo Li]

On 2018/7/13 4:34, Hamish Martin wrote:
> Hi Xiubo,
>
> Tested-by: Hamish Martin <hamish.martin@xxxxxxxxxxxxxxxxxxx>
>
> I see these were already merged into Linus' tree but I wanted to let you
> know that I tested v4.18-rc4 (which contains these three patches) and
> the issue which led to my original series is still fixed and this patch
> series of yours has caused no regression in our scenario. This was
> tested on PPC 64 bit system (NXP T2081).
Hi Hamish,

Cool and thanks very much for your testing about this.

BRs
Xiubo


> Thanks for resolving that.
>
> Regards,
> Hamish M.
>
> On 07/07/2018 02:05 PM, xiubli@xxxxxxxxxx wrote:
> > From: Xiubo Li <xiubli@xxxxxxxxxx>
> >
> > V2:
> > - resend it with some small fix
> >
> > V3:
> > - switch to use request_threaded_irq
> >
> > V4:
> > - remove useless checking code, Thanks Mike.
> > - Thanks very much for the review from Hamish and Mike.
> >
> >
> > Xiubo Li (3):
> >     uio: use request_threaded_irq instead
> >     uio: change to use the mutex lock instead of the spin lock
> >     uio: fix crash after the device is unregistered
> >
> >    drivers/uio/uio.c          | 139 +++++++++++++++++++++++++++++++++------------
> >    include/linux/uio_driver.h |   2 +-
> >    2 files changed, 104 insertions(+), 37 deletions(-)