Re: [PATCH] tpm_tis: verify locality released before returning from release_locality

From: Jarkko Sakkinen
Date: Mon May 14 2018 - 06:27:24 EST


On Sat, May 05, 2018 at 12:54:53PM -0700, Jerry Snitselaar wrote:
> For certain tpm chips releasing locality can take long enough that a
> subsequent call to request_locality will see the locality as being
> active when the access register is read in check_locality. So check
> that the locality has been released before returning from
> release_locality.
>
> Cc: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
> Cc: Peter Huewe <peterhuewe@xxxxxx>
> Cc: Jason Gunthorpe <jgg@xxxxxxxx>
> Reported-by: Laurent Bigonville <bigon@xxxxxxxxxx>
> Signed-off-by: Jerry Snitselaar <jsnitsel@xxxxxxxxxx>

Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>

/Jarkko