Chen-Yu Tsai 5fa42205ab clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe function ... commit b53e7d000d9e6e9fd2c6eb6b82d2783c67fd599e upstream. The bootloader (U-boot) sometimes uses this timer for various delays. It uses it as a ongoing counter, and does comparisons on the current counter value. The timer counter is never stopped. In some cases when the user interacts with the bootloader, or lets it idle for some time before loading Linux, the timer may expire, and an interrupt will be pending. This results in an unexpected interrupt when the timer interrupt is enabled by the kernel, at which point the event_handler isn't set yet. This results in a NULL pointer dereference exception, panic, and no way to reboot. Clear any pending interrupts after we stop the timer in the probe function to avoid this. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-09-24 10:07:35 +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: Migrate to new 'set-state' interface	2015-08-06 12:16:42 +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/drivers/exynos_mct: Use container_of() instead of this_cpu_ptr()	2015-10-15 17:42:03 +02:00
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