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>

1 files changed, 4 insertions, 1 deletions

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