From: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
of_irq_count() invokes of_irq_parse_one() to count IRQs, and successful
invocation of the later will get device node @irq.np refcount, but the
former does not put the refcount before next iteration invocation, hence
causes device node refcount leakages.
Fix by putting @irq.np refcount before the next iteration invocation.
Fixes: 3da5278727a8 ("of/irq: Rework of_irq_count()")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
---
drivers/of/irq.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index c41b2533d86d8eceabe8f2e43842af33f22febff..95a482a584740c3a0f55b791157072166dffffe0 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -518,8 +518,10 @@ int of_irq_count(struct device_node *dev)
struct of_phandle_args irq;
int nr = 0;
- while (of_irq_parse_one(dev, nr, &irq) == 0)
+ while (of_irq_parse_one(dev, nr, &irq) == 0) {
+ of_node_put(irq.np);
nr++;
+ }
return nr;
}
--
2.34.1
