From c4303b5288b790420d0133048f977e8077594172 Mon Sep 17 00:00:00 2001 From: Miaoqian Lin Date: Sun, 5 Jun 2022 09:32:23 +0400 Subject: [PATCH] powerpc/xive: Fix refcount leak in xive_get_max_prio [ Upstream commit 2519653d9b718c6e2bcc1dda9febd948b0edfc1e ] 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: 7a69a82db40b ("powerpc/xive: guest exploitation of the XIVE interrupt controller") Signed-off-by: Miaoqian Lin Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220605053225.56125-1-linmq006@gmail.com Signed-off-by: Sasha Levin --- arch/powerpc/sysdev/xive/spapr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c index 583b2c6df3909..2bf78a30238b9 100644 --- a/arch/powerpc/sysdev/xive/spapr.c +++ b/arch/powerpc/sysdev/xive/spapr.c @@ -716,6 +716,7 @@ 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; -- 2.39.5