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Message-Id: <20100219163251.071809208@kvm.kroah.org>
Date:	Fri, 19 Feb 2010 08:30:06 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Yinghai Lu <yinghai@...nel.org>, Ingo Molnar <mingo@...e.hu>
Subject: [73/93] x86: Re-get cfg_new in case reuse/move irq_desc

2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Yinghai Lu <yinghai@...nel.org>

commit 37ef2a3029fde884808ff1b369677abc7dd9a79a upstream.

When irq_desc is moved, we need to make sure to use the right cfg_new.

Signed-off-by: Yinghai Lu <yinghai@...nel.org>
LKML-Reference: <4B07A739.3030104@...nel.org>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

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

--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -3157,6 +3157,7 @@ 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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