linux/drivers/char
James Bottomley e42acf104d tpm_tis: Clean up locality release
The current release locality code seems to be based on the
misunderstanding that the TPM interrupts when a locality is released:
it doesn't, only when the locality is acquired.

Furthermore, there seems to be no point in waiting for the locality to
be released.  All it does is penalize the last TPM user.  However, if
there's no next TPM user, this is a pointless wait and if there is a
next TPM user, they'll pay the penalty waiting for the new locality
(or possibly not if it's the same as the old locality).

Fix the code by making release_locality as simple write to release
with no waiting for completion.

Cc: stable@ger.kernel.org
Fixes: 33bafe9082 ("tpm_tis: verify locality released before returning from release_locality")
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2021-02-16 10:40:27 +02:00
..
agp char/agp: Disable frontend without CONFIG_DRM_LEGACY 2020-11-18 22:47:45 +01:00
hw_random This pull request contains the following changes for UML: 2020-12-17 17:56:44 -08:00
ipmi char: ipmi: convert comma to semicolon 2020-12-16 07:54:54 -06:00
mwave char: mwave: remove unneeded break 2020-11-09 16:05:09 +01:00
pcmcia cm4000_cs.c cmm_ioctl(): get rid of pointless access_ok() 2020-05-29 11:04:56 -04:00
tpm tpm_tis: Clean up locality release 2021-02-16 10:40:27 +02:00
xilinx_hwicap
xillybus char: xillybus: use devm_platform_ioremap_resource() to simplify code 2019-11-05 18:29:21 +01:00
adi.c
apm-emulation.c
applicom.c misc: cleanup minor number definitions in c file into miscdevice.h 2020-03-18 12:27:03 +01:00
applicom.h
bsr.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
ds1620.c
dsp56k.c
dtlk.c
hangcheck-timer.c
hpet.c char: hpet: Fix out-of-bounds read bug 2020-01-30 06:58:33 +01:00
Kconfig char: virtio: Select VIRTIO from VIRTIO_CONSOLE. 2020-09-07 14:32:40 +02:00
lp.c char: lp: remove unneeded break 2020-11-09 16:05:09 +01:00
Makefile rtc/alpha: remove legacy rtc driver 2020-03-19 07:41:02 +01:00
mem.c /dev/zero: fixups for ->read 2020-09-07 10:46:35 +02:00
misc.c char: misc: increase DYNAMIC_MINORS value 2020-11-03 09:52:04 +01:00
mspec.c char: mspec: Use kvzalloc() in mspec_mmap() 2020-08-28 12:10:04 +02:00
nsc_gpio.c
nvram.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nwbutton.c
nwbutton.h misc: cleanup minor number definitions in c file into miscdevice.h 2020-03-18 12:27:03 +01:00
nwflash.c misc: move FLASH_MINOR into miscdevice.h and fix conflicts 2020-03-18 12:27:04 +01:00
pc8736x_gpio.c
powernv-op-panel.c
ppdev.c ppdev: Distribute switch variables for initialization 2020-02-23 20:28:12 +01:00
ps3flash.c powerpc/ps3: make system bus's remove and shutdown callbacks return void 2020-12-04 01:01:22 +11:00
random.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
raw.c raw: don't keep unopened block device around 2020-09-23 10:43:19 -06:00
scx200_gpio.c
sonypi.c
tb0219.c
tlclk.c drivers: char: tlclk.c: Avoid data race between init and interrupt handler 2020-04-23 16:55:24 +02:00
toshiba.c misc: cleanup minor number definitions in c file into miscdevice.h 2020-03-18 12:27:03 +01:00
ttyprintk.c ttyprintk: remove redundant initialization of variable ret 2020-07-10 14:50:51 +02:00
uv_mmtimer.c
virtio_console.c virtio: virtio_console: fix DMA memory allocation for rproc serial 2020-11-09 18:03:33 +01:00