The of_node_put does not seem to be needed. Note that there is none at the preceeding continues. julia ---------- Forwarded message ---------- Date: Sat, 11 Jun 2022 06:02:45 +0800 From: kernel test robot <lkp@xxxxxxxxx> To: kbuild@xxxxxxxxxxxx Cc: lkp@xxxxxxxxx, Julia Lawall <julia.lawall@xxxxxxx> Subject: [PATCH] drm: fix device_node_continue.cocci warnings CC: kbuild-all@xxxxxxxxxxxx BCC: lkp@xxxxxxxxx CC: Linux Memory Management List <linux-mm@xxxxxxxxx> TO: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx> CC: Maxime Ripard <mripard@xxxxxxxxxx> CC: David Airlie <airlied@xxxxxxxx> CC: Daniel Vetter <daniel@xxxxxxxx> CC: dri-devel@xxxxxxxxxxxxxxxxxxxxx CC: linux-kernel@xxxxxxxxxxxxxxx From: kernel test robot <lkp@xxxxxxxxx> drivers/gpu/drm/logicvc/logicvc_layer.c:616:2-13: ERROR: probable double put. Device node iterators put the previous value of the index variable, so an explicit put causes a double put. Generated by: scripts/coccinelle/iterators/device_node_continue.cocci Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: kernel test robot <lkp@xxxxxxxxx> --- tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 6d0c806803170f120f8cb97b321de7bd89d3a791 commit: efeeaefe9be56e8ae5e5b4e9ff6d2275ec977ec5 [2027/2566] drm: Add support for the LogiCVC display controller :::::: branch date: 17 hours ago :::::: commit date: 31 hours ago Please take the patch only if it's a positive warning. Thanks! drivers/gpu/drm/logicvc/logicvc_layer.c | 2 -- 1 file changed, 2 deletions(-) --- a/drivers/gpu/drm/logicvc/logicvc_layer.c +++ b/drivers/gpu/drm/logicvc/logicvc_layer.c @@ -612,8 +612,6 @@ int logicvc_layers_init(struct logicvc_d ret = logicvc_layer_init(logicvc, layer_node, index); if (ret) goto error; - - of_node_put(layer_node); } of_node_put(layers_node);