This is a note to let you know that I've just added the patch titled clk: qoriq: Hold reference returned by of_get_parent() to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: clk-qoriq-hold-reference-returned-by-of_get_parent.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 5f7c6416247f9ce6ecee17a23d1671437abcc23c Author: Liang He <windhl@xxxxxxx> Date: Tue Jun 28 22:38:51 2022 +0800 clk: qoriq: Hold reference returned by of_get_parent() [ Upstream commit a8ea4273bc26256ce3cce83164f0f51c5bf6e127 ] In legacy_init_clockgen(), we need to hold the reference returned by of_get_parent() and use it to call of_node_put() for refcount balance. Beside, in create_sysclk(), we need to call of_node_put() on 'sysclk' also for refcount balance. Fixes: 0dfc86b3173f ("clk: qoriq: Move chip-specific knowledge into driver") Signed-off-by: Liang He <windhl@xxxxxxx> Link: https://lore.kernel.org/r/20220628143851.171299-1-windhl@xxxxxxx Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/clk/clk-qoriq.c b/drivers/clk/clk-qoriq.c index 88898b97a443..5eddb9f0d6bd 100644 --- a/drivers/clk/clk-qoriq.c +++ b/drivers/clk/clk-qoriq.c @@ -1063,8 +1063,13 @@ static void __init _clockgen_init(struct device_node *np, bool legacy); */ static void __init legacy_init_clockgen(struct device_node *np) { - if (!clockgen.node) - _clockgen_init(of_get_parent(np), true); + if (!clockgen.node) { + struct device_node *parent_np; + + parent_np = of_get_parent(np); + _clockgen_init(parent_np, true); + of_node_put(parent_np); + } } /* Legacy node */ @@ -1159,6 +1164,7 @@ static struct clk * __init create_sysclk(const char *name) sysclk = of_get_child_by_name(clockgen.node, "sysclk"); if (sysclk) { clk = sysclk_from_fixed(sysclk, name); + of_node_put(sysclk); if (!IS_ERR(clk)) return clk; }