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a12aa8a68dfef5de181f2e555aa950a0ab05411f
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David Lechner a12aa8a68d clk: fix reentrancy of clk_enable() on UP systems 
Reentrant calls to clk_enable() are not working on UP systems. This is
caused by the fact spin_trylock_irqsave() always returns true when
CONFIG_SMP=n (and CONFIG_DEBUG_SPINLOCK=n) which causes the reference
counting to not work correctly when clk_enable_lock() is called twice
before clk_enable_unlock() is called (this happens when clk_enable()
is called from within another clk_enable()).

This fixes the problem by skipping the call to spin_trylock_irqsave() on UP
systems and relying solely on reference counting. We also make sure to set
flags in this case so that we are not returning an uninitialized value.

Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2018-01-10 13:39:31 -08:00
..
accessibility
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
acpi
Merge tag 'acpi-fix-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2017-11-17 14:51:24 -08:00
amba
Merge tag 'dma-mapping-4.15' of git://git.infradead.org/users/hch/dma-mapping
2017-11-14 16:54:12 -08:00
android
Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2017-11-16 09:10:59 -08:00
ata
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2017-11-15 14:11:41 -08:00
atm
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
auxdisplay
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 17:56:58 -08:00
base
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
2017-11-21 16:35:54 -08:00
bcma
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2017-11-15 11:56:19 -08:00
block
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
2017-11-21 16:35:54 -08:00
bluetooth
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
bus
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2017-11-16 16:05:01 -08:00
cdrom
Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block
2017-11-14 15:32:19 -08:00
char
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-26 14:11:54 -08:00
clk
clk: fix reentrancy of clk_enable() on UP systems
2018-01-10 13:39:31 -08:00
clocksource
Merge tag 'for-linus-timers-conversion-final-v4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into timers/urgent
2017-11-23 16:29:05 +01:00
connector
drivers, connector: convert cn_callback_entry.refcnt from atomic_t to refcount_t
2017-10-22 02:22:39 +01:00
cpufreq
Merge tag 'pm-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2017-11-13 19:43:50 -08:00
cpuidle
Merge tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2017-11-16 12:47:46 -08:00
crypto
Merge tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2017-11-16 12:47:46 -08:00
dax
Merge tag 'libnvdimm-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
2017-11-17 09:51:57 -08:00
dca
…
devfreq
Merge branches 'pm-devfreq' and 'pm-tools'
2017-11-13 01:41:39 +01:00
dio
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dma
Merge tag 'dmaengine-4.15-rc1' of git://git.infradead.org/users/vkoul/slave-dma
2017-11-14 16:49:31 -08:00
dma-buf
Merge tag 'trace-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2017-11-17 14:58:01 -08:00
edac
Merge tag 'modules-for-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
2017-11-15 13:46:33 -08:00
eisa
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
extcon
Merge tag 'usb-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
2017-11-13 21:14:07 -08:00
firewire
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 17:56:58 -08:00
firmware
drivers/firmware: psci: Convert timers to use timer_setup()
2017-11-21 15:46:44 -08:00
fmc
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fpga
Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2017-11-16 09:10:59 -08:00
fsi
…
gpio
Merge tag 'pinctrl-v4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
2017-11-16 10:57:11 -08:00
gpu
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-25 08:37:16 -10:00
hid
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
hsi
Merge tag 'hsi-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi
2017-11-15 13:35:43 -08:00
hv
Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2017-11-16 09:10:59 -08:00
hwmon
hwmon: (w83793) Remove duplicate NULL check
2017-11-16 01:03:19 -08:00
hwspinlock
Merge tag 'hwlock-v4.15' of git://github.com/andersson/remoteproc
2017-11-17 20:16:20 -08:00
hwtracing
Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2017-11-16 09:10:59 -08:00
i2c
Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-11-17 11:54:55 -08:00
ide
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
2017-11-19 08:04:41 -10:00
idle
Merge branch 'pm-cpuidle'
2017-11-13 01:34:14 +01:00
iio
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
infiniband
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
2017-11-21 16:35:54 -08:00
input
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
2017-11-21 16:35:54 -08:00
iommu
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
ipack
…
irqchip
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-26 14:39:20 -08:00
isdn
treewide: setup_timer() -> timer_setup() (2 field)
2017-11-21 15:57:09 -08:00
leds
Merge tag 'leds_for_4.15rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
2017-11-14 18:09:31 -08:00
lightnvm
lightnvm: Convert timers to use timer_setup()
2017-11-21 15:46:44 -08:00
macintosh
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 17:56:58 -08:00
mailbox
Merge tag 'mailbox-v4.15' of git://git.linaro.org/landing-teams/working/fujitsu/integration
2017-11-15 13:39:18 -08:00
mcb
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
md
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
2017-11-17 10:56:56 -08:00
media
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
2017-11-21 16:35:54 -08:00
memory
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2017-11-16 16:05:01 -08:00
memstick
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
message
Merge tag 'modules-for-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
2017-11-15 13:46:33 -08:00
mfd
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
misc
lkdtm: include WARN format string
2017-11-17 16:10:01 -08:00
mmc
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
mtd
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-25 08:37:16 -10:00
mux
…
net
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-25 08:37:16 -10:00
nfc
treewide: setup_timer() -> timer_setup() (2 field)
2017-11-21 15:57:09 -08:00
ntb
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
nubus
Merge tag 'm68k-for-v4.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
2017-11-13 12:10:24 -08:00
nvdimm
Merge tag 'libnvdimm-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
2017-11-17 09:51:57 -08:00
nvme
nvmet_fc: fix better length checking
2017-11-16 11:27:04 -07:00
nvmem
Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2017-11-16 09:10:59 -08:00
of
Merge tag 'devicetree-fixes-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
2017-11-20 21:38:41 -10:00
opp
PM / OPP: Add dev_pm_opp_{un}register_get_pstate_helper()
2017-10-14 00:54:41 +02:00
oprofile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
parisc
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
parport
Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2017-11-16 09:10:59 -08:00
pci
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-26 14:11:54 -08:00
pcmcia
drivers/pcmcia/sa1111_badge4.c: avoid unused function warning
2017-11-17 16:10:04 -08:00
perf
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2017-11-15 10:56:56 -08:00
phy
Merge tag 'usb-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
2017-11-13 21:14:07 -08:00
pinctrl
Merge tag 'pinctrl-v4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
2017-11-16 10:57:11 -08:00
platform
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-25 08:37:16 -10:00
pnp
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
power
Merge tag 'for-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
2017-11-15 13:37:15 -08:00
powercap
…
pps
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
ps3
…
ptp
Merge tag 'for-linus-4.15-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
2017-11-16 13:06:27 -08:00
pwm
Merge tag 'pwm/for-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
2017-11-22 21:09:18 -10:00
rapidio
Merge branch 'akpm' (patches from Andrew)
2017-11-17 16:56:17 -08:00
ras
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 17:56:58 -08:00
regulator
Merge tag 'mfd-next-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2017-11-16 09:15:57 -08:00
remoteproc
Merge tag 'rproc-v4.15' of git://github.com/andersson/remoteproc
2017-11-17 20:14:10 -08:00
reset
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2017-11-16 16:05:01 -08:00
rpmsg
Merge tag 'rpmsg-v4.15' of git://github.com/andersson/remoteproc
2017-11-17 20:12:08 -08:00
rtc
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-25 08:37:16 -10:00
s390
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
2017-11-21 16:35:54 -08:00
sbus
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
2017-11-17 20:21:44 -08:00
scsi
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-25 08:37:16 -10:00
sfi
…
sh
Merge tag 'dma-mapping-4.15' of git://git.infradead.org/users/hch/dma-mapping
2017-11-14 16:54:12 -08:00
sn
…
soc
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2017-11-16 16:05:01 -08:00
spi
Merge remote-tracking branches 'spi/topic/sh-msiof', 'spi/topic/slave', 'spi/topic/spreadtrum' and 'spi/topic/tegra114' into spi-next
2017-11-10 21:33:51 +00:00
spmi
…
ssb
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
staging
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
2017-11-21 16:35:54 -08:00
target
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-25 08:37:16 -10:00
tc
…
tee
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
thermal
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
2017-11-17 14:31:27 -08:00
thunderbolt
Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2017-11-16 09:10:59 -08:00
tty
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
2017-11-21 16:35:54 -08:00
uio
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
usb
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
uwb
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
vfio
Merge tag 'vfio-v4.15-rc1' of git://github.com/awilliam/linux-vfio
2017-11-14 16:47:47 -08:00
vhost
Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-11-17 12:08:18 -08:00
video
Merge tag 'fbdev-v4.15' of git://github.com/bzolnier/linux
2017-11-20 21:50:24 -10:00
virt
…
virtio
virtio_balloon: fix deadlock on OOM
2017-11-14 23:57:38 +02:00
vlynq
…
vme
Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2017-11-16 09:10:59 -08:00
w1
Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2017-11-16 09:10:59 -08:00
watchdog
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
xen
treewide: Switch DEFINE_TIMER callbacks to struct timer_list *
2017-11-21 15:57:05 -08:00
zorro
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
Kconfig
Merge branches 'pm-cpufreq-sched' and 'pm-opp'
2017-11-13 01:40:52 +01:00
Makefile
Merge branches 'pm-cpufreq-sched' and 'pm-opp'
2017-11-13 01:40:52 +01:00