Messages in this thread | | | Date | Sun, 14 Feb 2016 07:24:14 +0200 | From | Jarkko Sakkinen <> | Subject | Re: [PATCH 2/3] tpm: Get rid of chip->pdev |
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On Fri, Feb 12, 2016 at 08:33:20PM -0700, Jason Gunthorpe wrote: > On Fri, Feb 12, 2016 at 08:31:21PM -0500, Stefan Berger wrote: > > > I'll send you something else that might work for vtpm...' > > > > The vtpm driver will introduce chip->priv, which will point to vtpm_dev. For > > this reason we need to hold a reference to the vtpm_dev->dev in the > > front end. > > This should take care of it for all drivers including vtpm. > > https://github.com/jgunthorpe/linux/commits/for-jarkko > > At the very least this turns silent use after free into a null pointer > oops. > > We should also discuss if we want to continue to have the driver > module locked while /dev/tpmX is open, that is no longer needed for > corectness.
I'm happy the patch that was sent before although I didn't give it Reviewed-by because it had couple of style errors. If those two style errors are the *only* issues I can fix up them.
Unless the differences are trivial (like a missing return value or couple of minor style errors something very obvious) for me to fixup I'd hope to re-review the code.
I'm not trying to be difficult here. For small errors I can amend the commits but it seems that there was something more non-trival done
Other than the first patch (for which I'm still waiting a clear explanation why it is wrong), these are not going to 4.5 anyway so there's lots time to things the long way.
/Jarkko
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