linux-kernel - [GIT PULL] timer fixes

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Message-ID: <20130226113248.GA14726@gmail.com>
Date:	Tue, 26 Feb 2013 12:32:48 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] timer fixes

Linus,

Please pull the latest timers-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-urgent-for-linus

   HEAD: 00f4e13c4634b10f6a16b26a980b22a53dfa6bb5 clocksource : Nomadik-mtu : fix missing irq initialization

 Thanks,

	Ingo

------------------>
Daniel Lezcano (1):
      clocksource : Nomadik-mtu : fix missing irq initialization

Tejun Heo (1):
      posix-timer: Don't call idr_find() with out-of-range ID


 drivers/clocksource/nomadik-mtu.c | 1 +
 kernel/posix-timers.c             | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 8914c3c..7cbcaa0 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -226,5 +226,6 @@ void __init nmdk_timer_init(void __iomem *base, int irq)
 	/* Timer 1 is used for events, register irq and clockevents */
 	setup_irq(irq, &nmdk_timer_irq);
 	nmdk_clkevt.cpumask = cpumask_of(0);
+	nmdk_clkevt.irq = irq;
 	clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU);
 }
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 10349d5..7edfe4b 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)
 {
 	struct k_itimer *timr;
 
+	/*
+	 * timer_t could be any type >= int and we want to make sure any
+	 * @timer_id outside positive int range fails lookup.
+	 */
+	if ((unsigned long long)timer_id > INT_MAX)
+		return NULL;
+
 	rcu_read_lock();
 	timr = idr_find(&posix_timers_id, (int)timer_id);
 	if (timr) {
--
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