aboutsummaryrefslogtreecommitdiffstats
path: root/kernel/irq/manage.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-01-23 17:16:31 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-01-23 17:16:31 -0500
commit8528b0f1de1101c6002036fd53638fb21111d0ea (patch)
treefd4c21fbf54ae23b2edaf3ccd1d4423a55f2a14f /kernel/irq/manage.c
parentd227e87e6c939c6071def92bc7691ad774c733ff (diff)
Clear spurious irq stat information when adding irq handler
Any newly added irq handler may obviously make any old spurious irq status invalid, since the new handler may well be the thing that is supposed to handle any interrupts that came in. So just clear the statistics when adding handlers. Pointed-out-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/irq/manage.c')
-rw-r--r--kernel/irq/manage.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index b385878c6e80..8b961adc3bd2 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -315,6 +315,9 @@ int setup_irq(unsigned int irq, struct irqaction *new)
315 /* Undo nested disables: */ 315 /* Undo nested disables: */
316 desc->depth = 1; 316 desc->depth = 1;
317 } 317 }
318 /* Reset broken irq detection when installing new handler */
319 desc->irq_count = 0;
320 desc->irqs_unhandled = 0;
318 spin_unlock_irqrestore(&desc->lock, flags); 321 spin_unlock_irqrestore(&desc->lock, flags);
319 322
320 new->irq = irq; 323 new->irq = irq;