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-rw-r--r--hw/ppc4xx_pci.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/ppc4xx_pci.c b/hw/ppc4xx_pci.c
index 2c6921022..1bf785b4b 100644
--- a/hw/ppc4xx_pci.c
+++ b/hw/ppc4xx_pci.c
@@ -275,6 +275,10 @@ static void ppc4xx_pci_set_irq(void *opaque, int irq_num, int level)
qemu_irq *pci_irqs = opaque;
DPRINTF("%s: PCI irq %d\n", __func__, irq_num);
+ if (irq_num < 0) {
+ fprintf(stderr, "%s: PCI irq %d\n", __func__, irq_num);
+ return;
+ }
qemu_set_irq(pci_irqs[irq_num], level);
}