Re: [PATCH 3.2 090/110] NET: AX.25: Stop heartbeat timer on disconnect.

From: Ben Hutchings
Date: Tue Aug 11 2015 - 16:13:59 EST


On Mon, 2015-08-10 at 12:52 +0100, Richard Stearn wrote:
> Ben Hutchings wrote:
> > 3.2.71-rc1 review patch. If anyone has any objections, please let me know.
> >
> > ------------------
> >
> > From: Richard Stearn <richard@xxxxxxxxxxxxxxxxxxxxxx>
> >
> > commit da278622bf04f8ddb14519a2b8214e108ef26101 upstream.
> >
> > This may result in a kernel panic. The bug has always existed but
> > somehow we've run out of luck now and it bites.
> >
> > Signed-off-by: Richard Stearn <richard@xxxxxxxxxxxxxxxxxxxxxx>
> > Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
> > Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
> > Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
> > ---
> > net/ax25/ax25_subr.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > --- a/net/ax25/ax25_subr.c
> > +++ b/net/ax25/ax25_subr.c
> > @@ -265,6 +265,7 @@ void ax25_disconnect(ax25_cb *ax25, int
> > {
> > > > > > ax25_clear_queues(ax25);
> >
> > +> > > > ax25_stop_heartbeat(ax25);
> > > > > > ax25_stop_t1timer(ax25);
> > > > > > ax25_stop_t2timer(ax25);
> > > > > > ax25_stop_t3timer(ax25);
>
> This patch should _not_ be applied.
> Breaks other parts of the driver.
> Investigations on-going.

OK, I'll drop it for now.

Ben.

--
Ben Hutchings
Theory and practice are closer in theory than in practice.
- John Levine, moderator of comp.compilers

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