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RE: [Xen-devel] Null-pointer access in netback_uevent

To: "Bastian Blank" <waldi@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] Null-pointer access in netback_uevent
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Fri, 28 May 2010 10:47:48 +1000
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
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Thread-topic: [Xen-devel] Null-pointer access in netback_uevent
> >
> > I noticed this just after I posted (subject "oops starting domain on 4.0.0
> > +"). I'm getting the same error.
> >
> Actually my error is occurring because 'be' is NULL in netback_uevent (eg
> dev_get_drvdata returns NULL)

Looking into this further, I suspect that the trigger here is a newer version 
of udev or something in that area. netback_uevent is getting called before the 
call to netback_probe containing the call to dev_set_drvdata.

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