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    Subject[PATCH 5.10 109/158] usb: host: ohci-ppc-of: Fix refcount leak bug
    Date
    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 45f7cceb6df3..98e46725999e 100644
    --- a/drivers/usb/host/ohci-ppc-of.c
    +++ b/drivers/usb/host/ohci-ppc-of.c
    @@ -169,6 +169,7 @@ 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


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