[IA64] vector-domain - handle assign_irq_vector(AUTO_ASSIGN)
This change fixes a panic when assign_irq_vector(irq) is called with
irq = AUTO_ASSIGN.
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 91797c1..158eafb 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -212,9 +212,6 @@
vector = -ENOSPC;
spin_lock_irqsave(&vector_lock, flags);
- if (irq < 0) {
- goto out;
- }
for_each_online_cpu(cpu) {
domain = vector_allocation_domain(cpu);
vector = find_unassigned_vector(domain);
@@ -223,6 +220,8 @@
}
if (vector < 0)
goto out;
+ if (irq == AUTO_ASSIGN)
+ irq = vector;
BUG_ON(__bind_irq_vector(irq, vector, domain));
out:
spin_unlock_irqrestore(&vector_lock, flags);