cpufreq: zynq: Fix refcount leak in zynq_get_revision

[ Upstream commit 0c3665364280476f1ebb537ab07d0b0b7ac585d6 ]

of_find_compatible_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.

Fixes: f439cd63c4a3 ("ARM: zynq: Add support for SOC_BUS")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220605082807.21526-1-linmq006@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c
index 3a4248fd796281c367aa39fd30efcc2f252f1cf2..25530ddae1fa1895ed4c15d498857125d9b7bdac 100644 (file)
--- a/arch/arm/mach-zynq/common.c
+++ b/arch/arm/mach-zynq/common.c
@@ -77,6 +77,7 @@ static int __init zynq_get_revision(void)
        }
 
        zynq_devcfg_base = of_iomap(np, 0);
+       of_node_put(np);
        if (!zynq_devcfg_base) {
                pr_err("%s: Unable to map I/O memory\n", __func__);
                return -1;