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Message-ID: <EF2E73589CA71846A15D0B2CDF79505D068D0F0615@wm021.weinmann.com>
Date:	Wed, 3 Nov 2010 17:17:59 +0100
From:	"Voss, Nikolaus" <N.Voss@...nmann.de>
To:	"'Linux Kernel'" <linux-kernel@...r.kernel.org>
CC:	"'David Brownell'" <dbrownell@...rs.sourceforge.net>,
	"'Haavard Skinnemoen'" <hskinnemoen@...el.com>
Subject: [PATCH] atmel_tc: tcb_clksrc: fix init sequence

setup_irq() was called before clockevents_register_device() which
is needed by the irq handler. Bug was reproducible by restarting
the kernel using kexec (reliable crash).

Signed-off-by: Nikolaus Voss <n.voss@...nmann.de>
---
 drivers/clocksource/tcb_clksrc.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/tcb_clksrc.c
index 01b886e..79c47e8 100644
--- a/drivers/clocksource/tcb_clksrc.c
+++ b/drivers/clocksource/tcb_clksrc.c
@@ -196,9 +196,9 @@ static void __init setup_clkevents(struct atmel_tc *tc, int clk32k_divisor_idx)
 	clkevt.clkevt.min_delta_ns = clockevent_delta2ns(1, &clkevt.clkevt) + 1;
 	clkevt.clkevt.cpumask = cpumask_of(0);
 
-	setup_irq(irq, &tc_irqaction);
-
 	clockevents_register_device(&clkevt.clkevt);
+
+	setup_irq(irq, &tc_irqaction);
 }
 
 #else /* !CONFIG_GENERIC_CLOCKEVENTS */
-- 
1.5.4.3

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