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Date: Fri, 6 Feb 2009 09:59:22 -0800 From: David Brownell <david-b@...bell.net> To: tom.leiming@...il.com Cc: greg@...ah.com, kay.sievers@...y.org, LW@...o-electronics.de, hmh@....eng.br, linux-kernel@...r.kernel.org Subject: Re: [PATCH] platform driver:fix incorrect use of 'platform_bus_type' with 'struct device_driver' On Friday 06 February 2009, tom.leiming@...il.com wrote: > From: Ming Lei <tom.leiming@...il.com> > > This patch fixes the bug reported in > http://bugzilla.kernel.org/show_bug.cgi?id=11681. > > "Lots of device drivers register a 'struct device_driver' with > the '.bus' member set to '&platform_bus_type'. This is wrong, > since the platform_bus functions expect the 'struct device_driver' > to be wrapped up in a 'struct platform_driver' which provides > some additional callbacks (like suspend_late, resume_early). > The effect may be that platform_suspend_late() uses bogus data > outside the device_driver struct as a pointer pointer to the > device driver's suspend_late() function or other hard to > reproduce failures."(Lothar Wassmann) > > Signed-off-by: Ming Lei <tom.leiming@...il.com> I just glanced at this ... but those parts looked like good fixes to this family of bugs. Thanks. - Dave -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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