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[IA64] vector-domain - handle assign_irq_vector(AUTO_ASSIGN)

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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>
This commit is contained in:
Yasuaki Ishimatsu
2007-07-24 22:09:09 +09:00
committed by Tony Luck
parent 0de085bb47
commit 8f5ad1a822
1 changed files with 2 additions and 3 deletions
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5
arch/ia64/kernel/irq_ia64.c
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@@ -212,9 +212,6 @@ assign_irq_vector (int irq)
vector = -ENOSPC; vector = -ENOSPC;
spin_lock_irqsave(&vector_lock, flags); spin_lock_irqsave(&vector_lock, flags);
if (irq < 0) {
goto out;
}
for_each_online_cpu(cpu) { for_each_online_cpu(cpu) {
domain = vector_allocation_domain(cpu); domain = vector_allocation_domain(cpu);
vector = find_unassigned_vector(domain); vector = find_unassigned_vector(domain);
@@ -223,6 +220,8 @@ assign_irq_vector (int irq)
} }
if (vector < 0) if (vector < 0)
goto out; goto out;
if (irq == AUTO_ASSIGN)
irq = vector;
BUG_ON(__bind_irq_vector(irq, vector, domain)); BUG_ON(__bind_irq_vector(irq, vector, domain));
out: out:
spin_unlock_irqrestore(&vector_lock, flags); spin_unlock_irqrestore(&vector_lock, flags);