Re: [PATCH 4.19 002/106] tpm: Fix TPM 1.2 Shutdown sequence to prevent future TPM operations

2019-10-08 Thread Jarkko Sakkinen
> > --- a/drivers/char/tpm/tpm-chip.c > > +++ b/drivers/char/tpm/tpm-chip.c > > @@ -187,12 +187,13 @@ static int tpm_class_shutdown(struct device *dev) > > { > > struct tpm_chip *chip = container_of(dev, struct tpm_chip, dev); > > > > + down_write(>ops_sem); > > if (chip->flags &

Re: [PATCH 4.19 002/106] tpm: Fix TPM 1.2 Shutdown sequence to prevent future TPM operations

2019-10-08 Thread Pavel Machek
Hi! > From: Vadim Sukhomlinov > > 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 4.19 002/106] tpm: Fix TPM 1.2 Shutdown sequence to prevent future TPM operations

2019-10-06 Thread Greg Kroah-Hartman
From: Vadim Sukhomlinov 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