[PATCH] powerpc: CPM2 interrupt handler failure after 100,000 interrupts

[Kumar Gala]

The CPM2 interrupt handler does not return success to the IRQ subsystem, which
causes it to kill the IRQ line after 100,000 interrupts.

Signed-off-by: Edson Seabra <Edson.Seabra at cyclades.com>
Signed-off-by: Marcelo Tosatti <marcelo.tosatti at cyclades.com>
Signed-off-by: Kumar Gala <galak at kernel.crashing.org>

---

Paul: We should put this in the merge tree for linus to pick up for 
2.6.15.

commit 5f5a24140939b8f908a3cd131edaed6b6cf22174
tree 88efa1b2c4331abcda8858c64b5b971fabe9fc4f
parent b7d20dabe1f83f44d24d06121e10210b2a7e3ef8
author Kumar Gala <galak at kernel.crashing.org> Fri, 16 Dec 2005 08:47:28 -0600
committer Kumar Gala <galak at kernel.crashing.org> Fri, 16 Dec 2005 08:47:28 -0600

 arch/ppc/platforms/85xx/mpc85xx_cds_common.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
index d8991b8..5bfe688 100644
--- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
+++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
@@ -130,10 +130,11 @@ mpc85xx_cds_show_cpuinfo(struct seq_file
 }
 
 #ifdef CONFIG_CPM2
-static void cpm2_cascade(int irq, void *dev_id, struct pt_regs *regs)
+static int cpm2_cascade(int irq, void *dev_id, struct pt_regs *regs)
 {
 	while((irq = cpm2_get_irq(regs)) >= 0)
 		__do_IRQ(irq, regs);
+	return IRQ_HANDLED;
 }
 
 static struct irqaction cpm2_irqaction = {