From 793f7b12a0c95e7bfec1badf9628043fb78fd440 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 26 Dec 2008 19:02:20 +0100 Subject: sparseirq: fix desc->lock init Impact: cleanup init_one_irq_desc() does not initialize the desc->lock properly - you cannot init a lock by memcpying some other lock on it. This happens to work right now (because irq_desc_init is never in use), but it's a dangerous construct nevertheless, so fix it. Signed-off-by: Ingo Molnar --- kernel/irq/handle.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'kernel/irq/handle.c') diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index 06b05a4d3007..893da67b7781 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -93,6 +93,8 @@ void __attribute__((weak)) arch_init_chip_data(struct irq_desc *desc, int cpu) static void init_one_irq_desc(int irq, struct irq_desc *desc, int cpu) { memcpy(desc, &irq_desc_init, sizeof(struct irq_desc)); + + spin_lock_init(&desc->lock); desc->irq = irq; #ifdef CONFIG_SMP desc->cpu = cpu; -- cgit v1.2.2