commit 9c1628b603ee9d2bb220be0400c5dc6950cf012b
author John Crispin <blogic@openwrt.org> Thu Aug 16 08:09:21 2012 +0000
committer John Crispin <blogic@openwrt.org> Thu Aug 23 00:08:17 2012 +0200
tree 5feb56477d94689da28d88edd74c1c7fda3364d0
parent c2c9c788b91218bccbb9ac31539ffa577fe502bf

MIPS: lantiq: dont register irq_chip for the irq cascade

We dont want to register the irq_chip for the MIPS IRQ cascade.

Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4230/

arch/mips/lantiq/irq.c

diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index 0cec43d..87f15d6 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -297,6 +297,9 @@
 	struct irq_chip *chip = &ltq_irq_type;
 	int i;
 
+	if (hw < MIPS_CPU_IRQ_CASCADE)
+		return 0;
+
 	for (i = 0; i < exin_avail; i++)
 		if (hw == ltq_eiu_irq[i])
 			chip = &ltq_eiu_type;