From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit ec8401a429ffee34ccf38cebf3443f8d5ae6cb0d ]
of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. When kcalloc fails, it missing of_node_put() and results in refcount leak. Fix this by goto out_put_node label.
Fixes: 52085d3f2028 ("irqchip/gic-v3: Dynamically allocate PPI partition descriptors") Signed-off-by: Miaoqian Lin linmq006@gmail.com Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/20220601080930.31005-5-linmq006@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/irqchip/irq-gic-v3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index e5e3fd6b9554..8d62028a0e04 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -1831,7 +1831,7 @@ static void __init gic_populate_ppi_partitions(struct device_node *gic_node)
gic_data.ppi_descs = kcalloc(gic_data.ppi_nr, sizeof(*gic_data.ppi_descs), GFP_KERNEL); if (!gic_data.ppi_descs) - return; + goto out_put_node;
nr_parts = of_get_child_count(parts_node);