This is a note to let you know that I've just added the patch titled irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains to the 5.4-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: irqchip-alpine-msi-fix-refcount-leak-in-alpine_msix_.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 5af04e929dad8ffcc52cb54f9f484880077de107 Author: Miaoqian Lin <linmq006@xxxxxxxxx> Date: Mon Jan 2 12:28:10 2023 +0400 irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains [ Upstream commit 071d068b89e95d1b078aa6bbcb9d0961b77d6aa1 ] of_irq_find_parent() returns a node pointer with refcount incremented, We should use of_node_put() on it when not needed anymore. Add missing of_node_put() to avoid refcount leak. Fixes: e6b78f2c3e14 ("irqchip: Add the Alpine MSIX interrupt controller") Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx> Link: https://lore.kernel.org/r/20230102082811.3947760-1-linmq006@xxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/irqchip/irq-alpine-msi.c b/drivers/irqchip/irq-alpine-msi.c index ede02dc2bcd0b..1819bb1d27230 100644 --- a/drivers/irqchip/irq-alpine-msi.c +++ b/drivers/irqchip/irq-alpine-msi.c @@ -199,6 +199,7 @@ static int alpine_msix_init_domains(struct alpine_msix_data *priv, } gic_domain = irq_find_host(gic_node); + of_node_put(gic_node); if (!gic_domain) { pr_err("Failed to find the GIC domain\n"); return -ENXIO;