[PATCH] coccinelle: iterators: fix for_each_child.cocci warnings

[kernel test robot <lkp@intel.com>]

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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Sumera Priyadarsini <sylphrenadin@gmail.com>
CC: Julia Lawall <Julia.Lawall@lip6.fr>
CC: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
CC: Frank Rowand <frowand.list@gmail.com>
CC: Rob Herring <robh+dt@kernel.org>
CC: devicetree(a)vger.kernel.org
CC: linux-kernel(a)vger.kernel.org

From: kernel test robot <lkp@intel.com>

drivers/of/overlay.c:788:1-23: WARNING: Function "for_each_child_of_node" should have of_node_put() before goto around lines 799.


Semantic patch information:
 False positives can be due to function calls within the for_each
 loop that may encapsulate an of_node_put.

Generated by: scripts/coccinelle/iterators/for_each_child.cocci

Fixes: 82c2d81361ec ("coccinelle: iterators: Add for_each_child.cocci script")
CC: Sumera Priyadarsini <sylphrenadin@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
---

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   812da4d39463a060738008a46cfc9f775e4bfcf6
commit: 82c2d81361ecd142a54e84a9da1e287113314a4f coccinelle: iterators: Add for_each_child.cocci script
:::::: branch date: 13 hours ago
:::::: commit date: 5 months ago

Please take the patch only if it's a positive warning. Thanks!

 overlay.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -796,6 +796,7 @@ static int init_overlay_changeset(struct
 		if (!fragment->target) {
 			of_node_put(fragment->overlay);
 			ret = -EINVAL;
+			of_node_put(node);
 			goto err_free_fragments;
 		}