From: kernel test robot <lkp(a)intel.com&gt; for_each_node_by_type should have of_node_put() before return. Generated by: scripts/coccinelle/iterators/for_each_child.cocci CC: Sumera Priyadarsini <sylphrenadin(a)gmail.com&gt; Reported-by: kernel test robot <lkp(a)intel.com&gt; Signed-off-by: kernel test robot <lkp(a)intel.com&gt; --- The code seems to have been this way since the beginning of time. Perhaps the of_node_put is a no op for this code? core_64.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/arch/powerpc/kexec/core_64.c +++ b/arch/powerpc/kexec/core_64.c @@ -64,8 +64,10 @@ int default_machine_kexec_prepare(struct begin = image->segment[i].mem; end = begin + image->segment[i].memsz; - if ((begin < high) && (end > low)) + if ((begin < high) && (end > low)) { + of_node_put(node); return -ETXTBSY; + } } }