| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 47/60] xtensa: Fix refcount leak bug in time.c | Date | Mon, 27 Jun 2022 13:21:58 +0200 |
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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 @@ -160,6 +160,7 @@ 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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