This is a note to let you know that I've just added the patch titled powerpc/xive: Fix refcount leak in xive_get_max_prio to the 4.14-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: powerpc-xive-fix-refcount-leak-in-xive_get_max_prio.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 4f2b207af7df9a8deabad594287553d571a8b3f4 Author: Miaoqian Lin <linmq006@xxxxxxxxx> Date: Sun Jun 5 09:32:23 2022 +0400 powerpc/xive: Fix refcount leak in xive_get_max_prio [ Upstream commit 255b650cbec6849443ce2e0cdd187fd5e61c218c ] of_find_node_by_path() 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: eac1e731b59e ("powerpc/xive: guest exploitation of the XIVE interrupt controller") Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220605053225.56125-1-linmq006@xxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c index 10235098a726..e9b8e06c9dce 100644 --- a/arch/powerpc/sysdev/xive/spapr.c +++ b/arch/powerpc/sysdev/xive/spapr.c @@ -569,6 +569,7 @@ static bool xive_get_max_prio(u8 *max_prio) } reg = of_get_property(rootdn, "ibm,plat-res-int-priorities", &len); + of_node_put(rootdn); if (!reg) { pr_err("Failed to read 'ibm,plat-res-int-priorities' property\n"); return false;