Messages in this thread Patch in this message | | | From | Yinghai Lu <> | Subject | [PATCH 06/13] genirq: bail out early in free_desc() | Date | Thu, 23 Feb 2012 19:48:52 -0800 |
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So we can use irq_free_descs to clear allocated_irqs bits for preserved irqs.
Signed-off-by: Yinghai Lu <yinghai@kernel.org> --- kernel/irq/irqdesc.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index b1d6e51..da82457 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -169,6 +169,9 @@ static void free_desc(unsigned int irq) { struct irq_desc *desc = irq_to_desc(irq); + if (!desc) + return; + unregister_irq_proc(irq, desc); mutex_lock(&sparse_irq_lock); -- 1.7.7
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