From 13bfe99e09123ef5edb6acb81ba337d2db600b53 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 30 Sep 2010 02:46:07 +0200 Subject: genirq: Prepare proc for real sparse irq support /proc/irq never removes any entries, but when irq descriptors can be freed for real this is necessary. Otherwise we'd reference a freed descriptor in /proc/irq/N Signed-off-by: Thomas Gleixner Reviewed-by: Ingo Molnar --- kernel/irq/irqdesc.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'kernel/irq/irqdesc.c') diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 4eea48b4f576..6312a2c83971 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -205,6 +205,8 @@ static void free_desc(unsigned int irq) struct irq_desc *desc = irq_to_desc(irq); unsigned long flags; + unregister_irq_proc(irq, desc); + raw_spin_lock_irqsave(&sparse_irq_lock, flags); delete_irq_desc(irq); raw_spin_unlock_irqrestore(&sparse_irq_lock, flags); -- cgit v1.2.3