From: Yinghai Lu <yhlu.kernel@gmail.com>
Date: Wed, 20 Aug 2008 03:50:16 +0000 (-0700)
Subject: x86: check with without_new in show_interrupts
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1d5f6b36c4736af1dac396d6267eb53dcc8c0021;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

x86: check with without_new in show_interrupts

so we don't get new one that we don't need it.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index f58b995b30ee..f337f87c1e16 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -83,7 +83,10 @@ int show_interrupts(struct seq_file *p, void *v)
 
 	if (i < nr_irqs) {
 		unsigned any_count = 0;
-		struct irq_desc *desc = irq_to_desc(i);
+		struct irq_desc *desc = __irq_to_desc(i);
+
+		if (!desc)
+			return 0;
 
 		spin_lock_irqsave(&desc->lock, flags);
 #ifndef CONFIG_SMP