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    Subject[PATCH 5.15 113/135] xtensa: Fix refcount leak bug in time.c
    Date
    From: Liang He <windhl@126.com>

    commit a0117dc956429f2ede17b323046e1968d1849150 upstream.

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

    Cc: stable@vger.kernel.org
    Signed-off-by: Liang He <windhl@126.com>
    Message-Id: <20220617124432.4049006-1-windhl@126.com>
    Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    arch/xtensa/kernel/time.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/arch/xtensa/kernel/time.c
    +++ b/arch/xtensa/kernel/time.c
    @@ -154,6 +154,7 @@ static void __init calibrate_ccount(void
    cpu = of_find_compatible_node(NULL, NULL, "cdns,xtensa-cpu");
    if (cpu) {
    clk = of_clk_get(cpu, 0);
    + of_node_put(cpu);
    if (!IS_ERR(clk)) {
    ccount_freq = clk_get_rate(clk);
    return;

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