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authorMiaoqian Lin <linmq006@gmail.com>2022-06-05 08:32:23 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2022-08-01 15:21:18 +0300
commit255b650cbec6849443ce2e0cdd187fd5e61c218c (patch)
treeba97433aaa0ed5700b1c71b58b4cdc06eb1d9d56 /arch/powerpc/sysdev
parent6ac059dacffa8ab2f7798f20e4bd3333890c541c (diff)
downloadlinux-255b650cbec6849443ce2e0cdd187fd5e61c218c.tar.xz
powerpc/xive: Fix refcount leak in xive_get_max_prio
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@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220605053225.56125-1-linmq006@gmail.com
Diffstat (limited to 'arch/powerpc/sysdev')
-rw-r--r--arch/powerpc/sysdev/xive/spapr.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c
index d02911e78cfc..e2c8f93b535b 100644
--- a/arch/powerpc/sysdev/xive/spapr.c
+++ b/arch/powerpc/sysdev/xive/spapr.c
@@ -718,6 +718,7 @@ static bool __init 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;