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-rw-r--r--arch/sparc/kernel/leon_kernel.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index 87f60ee6543..7c0231dabe4 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -213,6 +213,7 @@ unsigned int leon_build_device_irq(unsigned int real_irq,
{
unsigned int irq;
unsigned long mask;
+ struct irq_desc *desc;
irq = 0;
mask = leon_get_irqmask(real_irq);
@@ -226,9 +227,12 @@ unsigned int leon_build_device_irq(unsigned int real_irq,
if (do_ack)
mask |= LEON_DO_ACK_HW;
- irq_set_chip_and_handler_name(irq, &leon_irq,
- flow_handler, name);
- irq_set_chip_data(irq, (void *)mask);
+ desc = irq_to_desc(irq);
+ if (!desc || !desc->handle_irq || desc->handle_irq == handle_bad_irq) {
+ irq_set_chip_and_handler_name(irq, &leon_irq,
+ flow_handler, name);
+ irq_set_chip_data(irq, (void *)mask);
+ }
out:
return irq;