1 files changed, 19 insertions, 15 deletions

diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index ff28620cb992..63b73f3d4c9f 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -2018,22 +2018,26 @@ ia64_mca_late_init(void)
 
                 if (cpe_vector >= 0) {
                         /* If platform supports CPEI, enable the irq. */
-                        cpe_poll_enabled = 0;
-                        for (irq = 0; irq < NR_IRQS; ++irq)
-                                if (irq_to_vector(irq) == cpe_vector) {
-                                        desc = irq_desc + irq;
-                                        desc->status |= IRQ_PER_CPU;
-                                        setup_irq(irq, &mca_cpe_irqaction);
-                                        ia64_cpe_irq = irq;
-                                }
-                        ia64_mca_register_cpev(cpe_vector);
-                        IA64_MCA_DEBUG("%s: CPEI/P setup and enabled.\n", __FUNCTION__);
-                } else {
-                        /* If platform doesn't support CPEI, get the timer going. */
-                        if (cpe_poll_enabled) {
-                                ia64_mca_cpe_poll(0UL);
-                                IA64_MCA_DEBUG("%s: CPEP setup and enabled.\n", __FUNCTION__);
+                        irq = local_vector_to_irq(cpe_vector);
+                        if (irq > 0) {
+                                cpe_poll_enabled = 0;
+                                desc = irq_desc + irq;
+                                desc->status |= IRQ_PER_CPU;
+                                setup_irq(irq, &mca_cpe_irqaction);
+                                ia64_cpe_irq = irq;
+                                ia64_mca_register_cpev(cpe_vector);
+                                IA64_MCA_DEBUG("%s: CPEI/P setup and enabled.\n",
+                                        __FUNCTION__);
+                                return 0;
                         }
+                        printk(KERN_ERR "%s: Failed to find irq for CPE "
+                                        "interrupt handler, vector %d\n",
+                                        __FUNCTION__, cpe_vector);
+                }
+                /* If platform doesn't support CPEI, get the timer going. */
+                if (cpe_poll_enabled) {
+                        ia64_mca_cpe_poll(0UL);
+                        IA64_MCA_DEBUG("%s: CPEP setup and enabled.\n", __FUNCTION__);
                 }
         }
 #endif