From: Javier Carrasco javier.carrasco.cruz@gmail.com

This loop requires explicit calls to of_node_put() upon early exits (break, goto, return) to decrement the child refcounter and avoid memory leaks if the child is not required out of the loop.

A more robust solution is using the scoped variant of the macro, which automatically calls of_node_put() when the child goes out of scope.

Cc: stable@vger.kernel.org Fixes: 979987371739 ("spmi: pmic-arb: Add multi bus support") Signed-off-by: Javier Carrasco javier.carrasco.cruz@gmail.com Link: https://lore.kernel.org/r/20241001-spmi-pmic-arb-scoped-v1-1-5872bab34ed6@gm... Reviewed-by: Neil Armstrong neil.armstrong@linaro.org Signed-off-by: Stephen Boyd sboyd@kernel.org --- drivers/spmi/spmi-pmic-arb.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index 9ba9495fcc4b..ea843159b745 100644 --- a/drivers/spmi/spmi-pmic-arb.c +++ b/drivers/spmi/spmi-pmic-arb.c @@ -1763,14 +1763,13 @@ static int spmi_pmic_arb_register_buses(struct spmi_pmic_arb *pmic_arb, { struct device *dev = &pdev->dev; struct device_node *node = dev->of_node; - struct device_node *child; int ret;

/* legacy mode doesn't provide child node for the bus */ if (of_device_is_compatible(node, "qcom,spmi-pmic-arb")) return spmi_pmic_arb_bus_init(pdev, node, pmic_arb);

- for_each_available_child_of_node(node, child) { + for_each_available_child_of_node_scoped(node, child) { if (of_node_name_eq(child, "spmi")) { ret = spmi_pmic_arb_bus_init(pdev, child, pmic_arb); if (ret)