On Thu, Oct 10, 2019 at 10:28:07AM +0200, Greg Kroah-Hartman wrote:
> On Thu, Oct 10, 2019 at 12:28:31AM +0300, Jarkko Sakkinen wrote:
> > From: Vadim Sukhomlinov <[email protected]>
> > 
> > commit db4d8cb9c9f2af71c4d087817160d866ed572cc9 upstream
> > 
> > TPM 2.0 Shutdown involve sending TPM2_Shutdown to TPM chip and disabling
> > future TPM operations. TPM 1.2 behavior was different, future TPM
> > operations weren't disabled, causing rare issues. This patch ensures
> > that future TPM operations are disabled.
> > 
> > Fixes: d1bd4a792d39 ("tpm: Issue a TPM2_Shutdown for TPM2 devices.")
> > Cc: [email protected]
> > Signed-off-by: Vadim Sukhomlinov <[email protected]>
> > [dianders: resolved merge conflicts with mainline]
> > Signed-off-by: Douglas Anderson <[email protected]>
> > Reviewed-by: Jarkko Sakkinen <[email protected]>
> > Signed-off-by: Jarkko Sakkinen <[email protected]>
> > ---
> >  drivers/char/tpm/tpm-chip.c | 9 ++++-----
> >  1 file changed, 4 insertions(+), 5 deletions(-)
> 
> This is already in the 4.14.148 4.19.78 5.1.18 5.2.1 5.3 releases.

There was one extra NULL assigment (non op). Nothing critical.

/Jarkko

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