Re: [PATCH -mm] misroute-irq: Don't call desc->chip->end becauseof edge interrupts

[Steven Rostedt]

On Mon, 2006-06-05 at 21:20 -0700, Andrew Morton wrote:
> On Mon, 05 Jun 2006 23:33:50 -0400
> Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> 
> > 
> > Hit the following BUG with irqpoll.  The below patch fixes it.
> > 
> 
> Call me a cynic, but
> 
> > +		if (work && disc->chip && desc->chip->end)
> 
> that doesn't look super-tested to me.

No, it hasn't been refreshed! Damn quilt!

Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>


Index: linux-2.6.17-rc5-mm3/kernel/irq/spurious.c
===================================================================
--- linux-2.6.17-rc5-mm3.orig/kernel/irq/spurious.c	2006-06-05 17:26:15.000000000 -0400
+++ linux-2.6.17-rc5-mm3/kernel/irq/spurious.c	2006-06-06 06:43:43.000000000 -0400
@@ -77,7 +77,7 @@ static int misrouted_irq(int irq, struct
 		 * If we did actual work for the real IRQ line we must let the
 		 * IRQ controller clean up too
 		 */
-		if (work)
+		if (work && desc->chip && desc->chip->end)
 			desc->chip->end(i);
 		spin_unlock(&desc->lock);
 	}



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