On Mon, Apr 25, 2016 at 12:21:30PM +0300, Jarkko Sakkinen wrote: > Signed-off-by: Jarkko Sakkinen <[email protected]> > Reported-by: Stefan Berger <[email protected]> > drivers/char/tpm/tpm-chip.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-)
Reviewed-By: Jason Gunthorpe <[email protected]> Fixes: 20e0152393b41 ("tpm: fix crash in tpm_tis deinitialization") > diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c > index a12db8e..1965dc7 100644 > +++ b/drivers/char/tpm/tpm-chip.c > @@ -270,7 +270,8 @@ static void tpm_del_char_device(struct tpm_chip *chip) > > /* Make the driver uncallable. */ > down_write(&chip->ops_sem); > - tpm2_shutdown(chip, TPM2_SU_CLEAR); > + if (chip->flags & TPM_CHIP_FLAG_TPM2) > + tpm2_shutdown(chip, TPM2_SU_CLEAR); > chip->ops = NULL; > up_write(&chip->ops_sem); > }
