linux-kernel - [PATCH] x86: reget cfg_new in case reuse/move irq

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Date:	Sun, 27 Sep 2009 00:21:59 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86: reget cfg_new in case reuse/move irq_desc


when irq_desc is moved, we need to make sure to use right cfg_new

Signed-off-by: Yinghai Lu <yinghai@...nel.org>

---
 arch/x86/kernel/apic/io_apic.c |    1 +
 1 file changed, 1 insertion(+)

Index: linux-2.6/arch/x86/kernel/apic/io_apic.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/apic/io_apic.c
+++ linux-2.6/arch/x86/kernel/apic/io_apic.c
@@ -3169,6 +3169,7 @@ unsigned int create_irq_nr(unsigned int
 			continue;
 
 		desc_new = move_irq_desc(desc_new, node);
+		cfg_new = desc_new->chip_data;
 
 		if (__assign_irq_vector(new, cfg_new, apic->target_cpus()) == 0)
 			irq = new;
--
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