Use the irq_get_nr_irqs() function instead of the global variable
'nr_irqs'. This patch prepares for changing 'nr_irqs' from an exported
global variable into a variable with file scope.

Cc: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 arch/s390/kernel/irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 2639a3d12736..a2c867181b5a 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -253,7 +253,7 @@ int show_interrupts(struct seq_file *p, void *v)
 		seq_putc(p, '\n');
 		goto out;
 	}
-	if (index < nr_irqs) {
+	if (index < irq_get_nr_irqs()) {
 		show_msi_interrupt(p, index);
 		goto out;
 	}