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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-26 22:43:20 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-26 22:43:20 -0500
commit24e55910e4801d772f95becde20b526b8b10388d (patch)
treefe02c8e39d21e940562624e95fbe6641a590e734
parentdcad0fceae528e8007610308bad7e5a3370e5c39 (diff)
parent00f4e13c4634b10f6a16b26a980b22a53dfa6bb5 (diff)
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar. * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource : Nomadik-mtu : fix missing irq initialization posix-timer: Don't call idr_find() with out-of-range ID
-rw-r--r--drivers/clocksource/nomadik-mtu.c1
-rw-r--r--kernel/posix-timers.c7
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 435e54d55bbd..071f6eadfea2 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -240,6 +240,7 @@ void __init nmdk_timer_init(void __iomem *base, int irq)
240 /* Timer 1 is used for events, register irq and clockevents */ 240 /* Timer 1 is used for events, register irq and clockevents */
241 setup_irq(irq, &nmdk_timer_irq); 241 setup_irq(irq, &nmdk_timer_irq);
242 nmdk_clkevt.cpumask = cpumask_of(0); 242 nmdk_clkevt.cpumask = cpumask_of(0);
243 nmdk_clkevt.irq = irq;
243 clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU); 244 clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU);
244 245
245 mtu_delay_timer.read_current_timer = &nmdk_timer_read_current_timer; 246 mtu_delay_timer.read_current_timer = &nmdk_timer_read_current_timer;
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 10349d5f2ec3..7edfe4b901e7 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -639,6 +639,13 @@ static struct k_itimer *__lock_timer(timer_t timer_id, unsigned long *flags)
639{ 639{
640 struct k_itimer *timr; 640 struct k_itimer *timr;
641 641
642 /*
643 * timer_t could be any type >= int and we want to make sure any
644 * @timer_id outside positive int range fails lookup.
645 */
646 if ((unsigned long long)timer_id > INT_MAX)
647 return NULL;
648
642 rcu_read_lock(); 649 rcu_read_lock();
643 timr = idr_find(&posix_timers_id, (int)timer_id); 650 timr = idr_find(&posix_timers_id, (int)timer_id);
644 if (timr) { 651 if (timr) {