linux-kernel - [PATCH] usb: ohci-nxp: Fix refcount leak in ohci_hcd_nxp

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Date:   Fri,  3 Jun 2022 18:12:30 +0400
From:   Miaoqian Lin <linmq006@...il.com>
To:     Vladimir Zapolskiy <vz@...ia.com>,
        Alan Stern <stern@...land.harvard.edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Roland Stigge <stigge@...com.de>,
        Arnd Bergmann <arnd@...db.de>,
        linux-arm-kernel@...ts.infradead.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     linmq006@...il.com
Subject: [PATCH] usb: ohci-nxp: Fix refcount leak in ohci_hcd_nxp_probe

of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.

Fixes: 73108aa90cbf ("USB: ohci-nxp: Use isp1301 driver")
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
---
 drivers/usb/host/ohci-nxp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 85878e8ad331..106a6bcefb08 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -164,6 +164,7 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev)
 	}
 
 	isp1301_i2c_client = isp1301_get_client(isp1301_node);
+	of_node_put(isp1301_node);
 	if (!isp1301_i2c_client)
 		return -EPROBE_DEFER;
 
-- 
2.25.1