From: Amit Daniel Kachhap <amit.kachhap@linaro.org>
Date: Thu, 8 Dec 2011 01:07:08 +0000 (+0900)
Subject: ARM: EXYNOS: Fix for stall in case of cpu hotplug or sleep
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e248cd5d5f1c28c82781d4122dddd1b7c3d7b46f;p=mv-sheeva.git

ARM: EXYNOS: Fix for stall in case of cpu hotplug or sleep

This patch adds remove_irq in place of disable_irq which
is correct equivalent function for setup_irq used in
exynos4_mct_tick_init.

Signed-off-by: Amit Daniel Kachhap <amit.kachhap@linaro.org>
Tested-by: Inderpal Singh <inderpal.singh@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---

diff --git a/arch/arm/mach-exynos/mct.c b/arch/arm/mach-exynos/mct.c
index 97343df8f13..959f2514796 100644
--- a/arch/arm/mach-exynos/mct.c
+++ b/arch/arm/mach-exynos/mct.c
@@ -428,9 +428,13 @@ int __cpuinit local_timer_setup(struct clock_event_device *evt)
 
 void local_timer_stop(struct clock_event_device *evt)
 {
+	unsigned int cpu = smp_processor_id();
 	evt->set_mode(CLOCK_EVT_MODE_UNUSED, evt);
 	if (mct_int_type == MCT_INT_SPI)
-		disable_irq(evt->irq);
+		if (cpu == 0)
+			remove_irq(evt->irq, &mct_tick0_event_irq);
+		else
+			remove_irq(evt->irq, &mct_tick1_event_irq);
 	else
 		disable_percpu_irq(IRQ_MCT_LOCALTIMER);
 }