linux-kernel - [PATCH] phy: rockchip-inno-usb2: fix for_each

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Date:   Wed, 23 Jun 2021 16:23:30 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org
cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Sumera Priyadarsini <sylphrenadin@...il.com>
Subject: [PATCH] phy: rockchip-inno-usb2: fix for_each_child.cocci warnings

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

For_each_available_child_of_node should have of_node_put()
before break around line 1184.  The other jumps out of the
loop do contain the put.

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

CC: Sumera Priyadarsini <sylphrenadin@...il.com>
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: kernel test robot <lkp@...el.com>
Signed-off-by: Julia Lawall <julia.lawall@...ia.fr>
---

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0c18f29aae7ce3dadd26d8ee3505d07cc982df75
commit: 82c2d81361ecd142a54e84a9da1e287113314a4f coccinelle: iterators: Add for_each_child.cocci script
:::::: branch date: 20 hours ago
:::::: commit date: 8 months ago

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

 phy-rockchip-inno-usb2.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
+++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
@@ -1180,8 +1180,10 @@ static int rockchip_usb2phy_probe(struct

 next_child:
 		/* to prevent out of boundary */
-		if (++index >= rphy->phy_cfg->num_ports)
+		if (++index >= rphy->phy_cfg->num_ports) {
+			of_node_put(child_np);
 			break;
+		}
 	}

 	provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);