diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2010-09-30 02:46:07 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-10-12 16:39:07 +0200 |
| commit | 13bfe99e09123ef5edb6acb81ba337d2db600b53 (patch) | |
| tree | f96f5be41c90e1ab437bb40a02a8f137deb9e3ab /kernel/irq/irqdesc.c | |
| parent | 1f5a5b87f78fade3ae48dfd55e8765d1d622ea4e (diff) | |
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 <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/irq/irqdesc.c')
| -rw-r--r-- | kernel/irq/irqdesc.c | 2 |
1 files changed, 2 insertions, 0 deletions
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); |