[PATCH AUTOSEL 5.19 20/64] usb: host: ohci-ppc-of: Fix refcount leak bug

Sasha Levin
2022-08-14T15:29:27Z

From: Liang He <windhl@126.com>

[ Upstream commit 40a959d7042bb7711e404ad2318b30e9f92c6b9b ]

In ohci_hcd_ppc_of_probe(), of_find_compatible_node() will return
a node pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220617034637.4003115-1-windhl@126.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/host/ohci-ppc-of.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c
index 1960b8dfdba5..591f675cc930 100644
--- a/drivers/usb/host/ohci-ppc-of.c
+++ b/drivers/usb/host/ohci-ppc-of.c
@@ -166,6 +166,7 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op)
release_mem_region(res.start, 0x4);
} else
pr_debug("%s: cannot get ehci offset from fdt\n", __FILE__);
+ of_node_put(np);
}

irq_dispose_mapping(irq);
--
2.35.1