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linux/drivers/clocksource
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Maxime Ripard 09c5db4f30 clockevent: sun4i: Fix race condition in the probe code 
commit 6bab4a8a18 upstream.

The interrupts were activated and the handler registered before the clockevent
was registered in the probe function.

The interrupt handler, however, was making the assumption that the clockevent
device was registered.

That could cause a null pointer dereference if the timer interrupt was firing
during this narrow window.

Fix that by moving the clockevent registration before the interrupt is enabled.

Reported-by: Roman Byshko <rbyshko@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2014-12-06 15:55:34 -08:00
..
acpi_pm.c treewide: Fix printks with 0x%# 2013-08-27 10:49:38 +02:00
arm_arch_timer.c clocksource: arch_timer: Do not register arch_sys_counter twice 2013-10-16 08:30:03 +02:00
arm_global_timer.c clocksource: arm_global_timer: Switch to sched_clock_register() 2013-12-11 11:40:23 +01:00
bcm2835_timer.c clocksource: bcm2835: Switch to sched_clock_register() 2013-07-30 11:24:51 -07:00
bcm_kona_timer.c clocksource: Kona: Print warning rather than panic 2014-02-06 16:01:40 +01:00
cadence_ttc_timer.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-20 11:34:26 -08:00
clksrc-dbx500-prcmu.c clocksource: dbx500-prcmu: Switch to sched_clock_register() 2013-07-30 11:24:52 -07:00
clksrc-of.c Merge branch 'clockevents/3.14' of git://git.linaro.org/people/daniel.lezcano/linux into timers/core 2014-01-14 14:33:29 +01:00
cs5535-clockevt.c clocksource: misc drivers: Remove deprecated IRQF_DISABLED 2013-12-11 11:40:27 +01:00
cyclone.c clocksource: cyclone: Add missing iounmap 2012-01-26 19:30:40 -08:00
dummy_timer.c clocksource+irqchip: delete __cpuinit usage from all related files 2013-07-14 19:36:57 -04:00
dw_apb_timer.c clocksource: misc drivers: Remove deprecated IRQF_DISABLED 2013-12-11 11:40:27 +01:00
dw_apb_timer_of.c clocksource: dw_apb_timer_of: Fix support for dts binding "snps,dw-apb-timer" 2013-12-10 19:49:18 +01:00
em_sti.c clocksource: em_sti: convert to clk_prepare/unprepare 2013-10-22 22:36:24 +02:00
exynos_mct.c clocksource: Exynos_mct: Register clock event after request_irq() 2014-06-07 10:28:08 -07:00
i8253.c time: Kill xtime_lock, replacing it with jiffies_lock 2012-11-13 14:08:23 -05:00
Kconfig Merge branch 'clockevents/3.14' of git://git.linaro.org/people/daniel.lezcano/linux into timers/core 2014-01-14 14:33:29 +01:00
Makefile ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
metag_generic.c clocksource+irqchip: delete __cpuinit usage from all related files 2013-07-14 19:36:57 -04:00
mmio.c clocksource: add common mmio clocksource 2011-05-23 18:04:51 +01:00
moxart_timer.c ARM: clocksource: moxart: Add bitops.h include 2013-08-01 01:13:34 +02:00
mxs_timer.c clocksource: mxs_timer: Switch to sched_clock_register() 2013-07-30 11:24:52 -07:00
nomadik-mtu.c ARM: SoC DT updates for 3.14 2014-01-23 18:45:38 -08:00
samsung_pwm_timer.c clocksource: misc drivers: Remove deprecated IRQF_DISABLED 2013-12-11 11:40:27 +01:00
scx200_hrt.c clocksource: scx200_hrt: Fix the build 2012-02-22 13:25:16 +01:00
sh_cmt.c Merge branch 'clockevents/for-Simon-3.13-rc2' into clockevents/3.14 2013-12-18 15:14:36 +01:00
sh_mtu2.c Merge branch 'clockevents/3.14' of git://git.linaro.org/people/daniel.lezcano/linux into timers/core 2014-01-14 14:33:29 +01:00
sh_tmu.c Merge branch 'clockevents/3.14' of git://git.linaro.org/people/daniel.lezcano/linux into timers/core 2014-01-14 14:33:29 +01:00
sun4i_timer.c clockevent: sun4i: Fix race condition in the probe code 2014-12-06 15:55:34 -08:00
tcb_clksrc.c clocksource: tcb_clksrc: Remove IRQF_DISABLED 2013-10-03 16:28:40 +02:00
tegra20_timer.c clocksource: tegra: Remove deprecated IRQF_DISABLED 2013-12-11 11:40:28 +01:00
time-armada-370-xp.c Merge branch 'clockevents/3.14' of git://git.linaro.org/people/daniel.lezcano/linux into timers/core 2014-01-14 14:33:29 +01:00
time-efm32.c clocksource: Provide timekeeping for efm32 SoCs 2013-10-22 22:36:33 +02:00
time-orion.c clocksource: orion: Switch to sched_clock_register() 2013-12-11 11:40:25 +01:00
timer-marco.c Now that we have a generic arch hook for broadcast we can remove the local 2013-07-23 16:54:15 -07:00
timer-prima2.c clocksource: sirf: Switch to sched_clock_register() and use 64 bits 2013-07-30 11:24:55 -07:00
timer-sun5i.c clocksource: Timer-sun5i: Switch to sched_clock_register() 2014-01-19 13:23:23 +01:00
vf_pit_timer.c clocksource: vf_pit_timer: use complement for sched_clock reading 2014-03-06 11:34:14 +01:00
vt8500_timer.c clocksource: vt8500: Remove deprecated IRQF_DISABLED 2013-12-11 11:40:28 +01:00
zevio-timer.c clocksource: Add TI-Nspire timer support 2013-06-06 17:23:13 +02:00