[MIPS] IP22: Complain if requesting the front panel irq failed.

This fixes the warning:

  CC      arch/mips/sgi-ip22/ip22-reset.o
arch/mips/sgi-ip22/ip22-reset.c: In function 'reboot_setup':
arch/mips/sgi-ip22/ip22-reset.c:239: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 8 insertions, 1 deletions

diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c
index 63afd7e44428..a435b31cf031 100644
--- a/arch/mips/sgi-ip22/ip22-reset.c
+++ b/arch/mips/sgi-ip22/ip22-reset.c
@@ -232,11 +232,18 @@ static struct notifier_block panic_block = {
 
 static int __init reboot_setup(void)
 {
+        int res;
+
         _machine_restart = sgi_machine_restart;
         _machine_halt = sgi_machine_halt;
         pm_power_off = sgi_machine_power_off;
 
-        request_irq(SGI_PANEL_IRQ, panel_int, 0, "Front Panel", NULL);
+        res = request_irq(SGI_PANEL_IRQ, panel_int, 0, "Front Panel", NULL);
+        if (res) {
+                printk(KERN_ERR "Allocation of front panel IRQ failed\n");
+                return res;
+        }
+
         init_timer(&blink_timer);
         blink_timer.function = blink_timeout;
         atomic_notifier_chain_register(&panic_notifier_list, &panic_block);