The code in goto err3 path is wrong because it will call fee_irq() with k == 0,
which means it does free_irq(p->irq[-1].requested_irq, &p->irq[-1]);

Signed-off-by: Axel Lin <[email protected]>
---
 drivers/irqchip/irq-renesas-irqc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-renesas-irqc.c 
b/drivers/irqchip/irq-renesas-irqc.c
index 649cd69..3651f77 100644
--- a/drivers/irqchip/irq-renesas-irqc.c
+++ b/drivers/irqchip/irq-renesas-irqc.c
@@ -252,8 +252,8 @@ static int irqc_probe(struct platform_device *pdev)
 
        return 0;
 err3:
-       for (; k >= 0; k--)
-               free_irq(p->irq[k - 1].requested_irq, &p->irq[k - 1]);
+       while (--k >= 0)
+               free_irq(p->irq[k].requested_irq, &p->irq[k]);
 
        irq_domain_remove(p->irq_domain);
 err2:
-- 
1.8.1.2



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