On Monday, January 11, 2016 12:04:50 PM Guenter Roeck wrote:
> On Mon, Jan 11, 2016 at 10:55:00AM -0800, Tony Lindgren wrote:
> > * Guenter Roeck <linux@xxxxxxxxxxxx> [160111 09:51]:
> > > Hi,
> > >
> > > I see 6 out of 24 arm qemu tests failing in next-20160111. Bisect points
> > > to commit 989561de9b51 ("PM / Domains: add setter for dev.pm_domain").
> > > Failures are silent - there is no output on the console.
> > > Affected tests are
> > >
> > > arm:beagle:multi_v7_defconfig:omap3-beagle
> > > arm:beaglexm:multi_v7_defconfig:omap3-beagle-xm
> > > arm:overo:multi_v7_defconfig:omap3-overo-tobi
> > > arm:beagle:omap2plus_defconfig:omap3-beagle
> > > arm:beaglexm:omap2plus_defconfig:omap3-beagle-xm
> > > arm:overo:omap2plus_defconfig:omap3-overo-tobi
> > >
> > > For details please see the 'next' column at http://server.roeck-us.net:8010/builders.
> > >
> > > Reverting the offending commit fixes the problems.
> > >
> > > Please let me know if there is anything I can do to help tracking down the problem.
> >
> > The following fixes the booting, but I wonder if it's a
>
> Yes, it does.
>
> Tested-by: Guenter Roeck <linux@xxxxxxxxxxxx>
>
> > proper fix?
> >
> That I don't know.
If I'm not mistaken, what happens is that device_is_bound() tries to
dereference dev->p which is NULL. If that's the case, the appended one
should help too.
Can you please check?
---
drivers/base/dd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-pm/drivers/base/dd.c
===================================================================
--- linux-pm.orig/drivers/base/dd.c
+++ linux-pm/drivers/base/dd.c
@@ -234,7 +234,7 @@ late_initcall(deferred_probe_initcall);
*/
bool device_is_bound(struct device *dev)
{
- return klist_node_attached(&dev->p->knode_driver);
+ return dev->p && klist_node_attached(&dev->p->knode_driver);
}
static void driver_bound(struct device *dev)
--
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