linux-kernel - [PATCH] PCI/hotplug: Remove unneeded of_node_put() in pnv

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Date:   Wed, 20 Oct 2021 05:46:04 -0400
From:   Wan Jiabing <wanjiabing@...o.com>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     kael_w@...h.net, Wan Jiabing <wanjiabing@...o.com>
Subject: [PATCH] PCI/hotplug: Remove unneeded of_node_put() in pnv_php

Fix following coccicheck warning:
./drivers/pci/hotplug/pnv_php.c:161:2-13: ERROR: probable double put.

Device node iterators put the previous value of the index variable, so
an explicit put causes a double put.

Signed-off-by: Wan Jiabing <wanjiabing@...o.com>
---
 drivers/pci/hotplug/pnv_php.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/pci/hotplug/pnv_php.c b/drivers/pci/hotplug/pnv_php.c
index f4c2e6e01be0..f3da4f95d73f 100644
--- a/drivers/pci/hotplug/pnv_php.c
+++ b/drivers/pci/hotplug/pnv_php.c
@@ -158,7 +158,6 @@ static void pnv_php_detach_device_nodes(struct device_node *parent)
 	for_each_child_of_node(parent, dn) {
 		pnv_php_detach_device_nodes(dn);
 
-		of_node_put(dn);
 		of_detach_node(dn);
 	}
 }
-- 
2.20.1