David Kozub cffdaa65e7 clockevents/drivers/cs5535: Improve resilience to spurious interrupts ... commit eb39a7c0355393c5a8d930f342ad7a6231b552c4 upstream. The interrupt handler mfgpt_tick() is not robust versus spurious interrupts which happen before the clock event device is registered and fully initialized. The reason is that the safe guard against spurious interrupts solely checks for the clockevents shutdown state, but lacks a check for detached state. If the interrupt hits while the device is in detached state it passes the safe guard and dereferences the event handler call back which is NULL. Add the missing state check. Fixes: 8f9327cbb6 ("clockevents/drivers/cs5535: Migrate to new 'set-state' interface") Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Kozub <zub@linux.fjfi.cvut.cz> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lkml.kernel.org/r/20171020093103.3317F6004D@linux.fjfi.cvut.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-10-27 10:23:17 +02:00
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acpi_pm.c	treewide: Fix printks with 0x%#	2013-08-27 10:49:38 +02:00
arm_arch_timer.c	clocksource / arm_arch_timer: Convert to ACPI probing	2015-10-01 02:18:39 +02:00
arm_global_timer.c	clocksource/drivers/arm_global_timer: Prevent ftrace recursion	2015-10-27 01:32:33 +01:00
armv7m_systick.c	clocksource/drivers/armv7m_systick: Add ARM System timer driver	2015-06-02 12:10:14 +02:00
asm9260_timer.c	clockevents/drivers/asm9260: Migrate to new 'set-state' interface	2015-08-10 11:40:25 +02:00
bcm2835_timer.c	clockevents/drivers/bcm2835: Migrate to new 'set-state' interface	2015-08-06 12:16:41 +02:00
bcm_kona_timer.c	clockevents/drivers/bcm_kona: Migrate to new 'set-state' interface	2015-08-06 12:16:42 +02:00
cadence_ttc_timer.c	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-09-01 14:04:50 -07:00
clksrc-dbx500-prcmu.c	clocksource: dbx500-prcmu: Switch to sched_clock_register()	2013-07-30 11:24:52 -07:00
clksrc-probe.c	clocksource: cosmetic: Drop OF 'dependency' from symbols	2015-10-01 02:18:39 +02:00
clksrc_st_lpc.c	clocksource: sti: Provide 'use timer as sched clock' capability	2015-07-23 17:07:26 +01:00
clps711x-timer.c	clockevents/drivers/clps711x: Migrate to new 'set-state' interface	2015-08-10 11:40:27 +02:00
cs5535-clockevt.c	clockevents/drivers/cs5535: Improve resilience to spurious interrupts	2017-10-27 10:23:17 +02:00
dummy_timer.c	clockevents/drivers/dummy_timer: Migrate to new 'set-state' interface	2015-08-10 11:40:28 +02:00
dw_apb_timer.c	clockevents/drivers/dw_apb_timer: Add dynamic irq flag to the timer	2015-08-10 11:40:53 +02:00
dw_apb_timer_of.c	clocksource/drivers/dw_apb_timers_of: Fix IO endianness causing time jumps	2015-03-31 09:15:57 +02:00
em_sti.c	clocksource/drivers/em_sti: Remove unneeded memset()s	2015-10-15 17:41:59 +02:00
exynos_mct.c	clocksource/exynos_mct: Clear interrupt when cpu is shut down	2017-01-26 08:23:48 +01:00
fsl_ftm_timer.c	clocksource/fsl: Avoid harmless 64-bit warnings	2015-11-16 19:07:08 +01:00
h8300_timer8.c	clocksource/drivers/h8300_*: Remove unneeded memset()s	2015-10-15 17:42:02 +02:00
h8300_timer16.c	clocksource/drivers/h8300_*: Remove unneeded memset()s	2015-10-15 17:42:02 +02:00
h8300_tpu.c	clocksource/drivers/h8300_*: Remove unneeded memset()s	2015-10-15 17:42:02 +02:00
i8253.c	clockevents/drivers/i8253: Migrate to new 'set-state' interface	2015-08-10 11:40:30 +02:00
Kconfig	clocksource: Disallow drivers for ARCH_USES_GETTIMEOFFSET	2015-11-16 19:07:08 +01:00
Makefile	ARM: SoC cleanups for v4.4	2015-11-10 14:48:36 -08:00
meson6_timer.c	clockevents/drivers/meson6: Migrate to new 'set-state' interface	2015-08-10 11:40:30 +02:00
metag_generic.c	clockevents/drivers/metag_generic: Migrate to new 'set-state' interface	2015-08-10 11:40:31 +02:00
mips-gic-timer.c	MIPS: VDSO: Add implementations of gettimeofday() and clock_gettime()	2015-11-11 08:36:41 +01:00
mmio.c	clocksource: Mmio: remove artificial 32bit limitation	2015-12-10 19:37:18 +01:00
moxart_timer.c	clockevents/drivers/moxart: Migrate to new 'set-state' interface	2015-08-10 11:40:32 +02:00
mtk_timer.c	clocksource/drivers/mediatek: Use GPT as sched clock source	2015-10-15 17:41:58 +02:00
mxs_timer.c	clockevents/drivers/mxs: Migrate to new 'set-state' interface	2015-08-10 11:40:34 +02:00
nomadik-mtu.c	clockevents/drivers/nomadik-mtu: Migrate to new 'set-state' interface	2015-08-10 11:40:34 +02:00
numachip.c	x86/numachip: Fix timer build conflict	2015-09-23 05:39:20 +02:00
pxa_timer.c	clockevents/drivers/pxa: Migrate to new 'set-state' interface	2015-08-10 11:40:35 +02:00
qcom-timer.c	clockevents/drivers/qcom: Migrate to new 'set-state' interface	2015-08-10 11:40:36 +02:00
rockchip_timer.c	clocksource/drivers/rockchip: Fix bad NO_IRQ usage	2015-09-29 14:33:34 +02:00
samsung_pwm_timer.c	clocksource/drivers/samsung_pwm_timer: Prevent ftrace recursion	2015-10-27 01:33:41 +01:00
scx200_hrt.c	clocksource: scx200_hrt: Fix the build	2012-02-22 13:25:16 +01:00
sh_cmt.c	clocksource/drivers/sh_cmt: Remove unneeded memset() in sh_cmt_setup()	2015-10-15 17:42:00 +02:00
sh_mtu2.c	clocksource/drivers/sh_mtu2: Fix multiple shutdown call issue	2015-10-28 15:22:56 +01:00
sh_tmu.c	clocksource/drivers/sh_tmu: Fix traceback spotted in -next	2015-08-10 11:40:57 +02:00
sun4i_timer.c	clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe function	2016-09-24 10:07:35 +02:00
tango_xtal.c	clocksource/drivers/tango_xtal: Add new timer for Tango SoCs	2015-10-16 14:09:57 +02:00
tcb_clksrc.c	clockevents/tcb_clksrc: Prevent disabling an already disabled clock	2016-03-03 15:07:15 -08:00
tegra20_timer.c	clockevents/drivers/tegra20: Migrate to new 'set-state' interface	2015-08-10 11:40:40 +02:00
time-armada-370-xp.c	clocksource/drivers/armada-370-xp: Implement ARM delay timer	2015-10-19 22:42:14 +02:00
time-efm32.c	clockevents/drivers/efm32: Migrate to new 'set-state' interface	2015-08-10 11:40:42 +02:00
time-lpc32xx.c	clocksource/drivers/lpc32xx: Add the lpc32xx timer driver	2015-06-02 12:10:10 +02:00
time-orion.c	clockevents/drivers/orion: Migrate to new 'set-state' interface	2015-08-10 11:40:42 +02:00
time-pistachio.c	clocksource/drivers/pistachio: Prevent ftrace recursion	2015-10-27 01:33:18 +01:00
timer-atlas7.c	clockevents/drivers/atlas7: Migrate to new 'set-state' interface	2015-08-10 11:40:43 +02:00
timer-atmel-pit.c	clockevents/drivers/timer-atmel-pit: Fix typo in structure initialization	2015-08-10 11:40:56 +02:00
timer-atmel-st.c	clocksource: atmel-st: get and use slow clock	2015-10-06 12:25:11 +02:00
timer-digicolor.c	clocksource/drivers/digicolor: Prevent ftrace recursion	2015-10-27 01:34:17 +01:00
timer-imx-gpt.c	clocksource/drivers/imx: Allow timer irq affinity change	2015-10-15 17:42:05 +02:00
timer-integrator-ap.c	clockevents/drivers/integrator: Migrate to new 'set-state' interface	2015-08-10 11:40:46 +02:00
timer-keystone.c	clocksource/drivers/keystone: Fix bad NO_IRQ usage	2015-09-29 14:33:51 +02:00
timer-prima2.c	clocksource/drivers/prima2: Prevent ftrace recursion	2015-10-27 01:33:50 +01:00
timer-sp.h	ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource	2015-06-02 09:58:18 +01:00
timer-sp804.c	clockevents/drivers/timer-sp804: Migrate to new 'set-state' interface	2015-08-10 11:40:55 +02:00
timer-stm32.c	clockevents/drivers/stm32: Migrate to new 'set-state' interface	2015-08-10 11:40:48 +02:00
timer-sun5i.c	clockevents/drivers/sun5i: Migrate to new 'set-state' interface	2015-08-10 11:40:49 +02:00
timer-ti-32k.c	clocksource: add TI 32.768 Hz counter driver	2015-10-16 11:06:24 -05:00
timer-u300.c	clockevents/drivers/u300: Migrate to new 'set-state' interface	2015-08-10 11:40:49 +02:00
versatile.c	clocksource: versatile: Adapt for Versatile AB and PB boards	2015-01-29 14:02:16 +01:00
vf_pit_timer.c	clocksource/drivers/vf_pit_timer: Prevent ftrace recursion	2015-10-27 01:33:58 +01:00
vt8500_timer.c	clocksource/drivers/vt8500: Increase the minimum delta	2016-03-03 15:07:11 -08:00
zevio-timer.c	clockevents/drivers/zevio: Migrate to new 'set-state' interface	2015-08-10 11:40:51 +02:00