From: Miaoqian Lin <linmq006@gmail.com>
Date: Thu, 2 Jun 2022 11:08:49 +0000 (+0400)
Subject: usb: host: Fix refcount leak in ehci_hcd_ppc_of_probe
X-Git-Tag: baikal/mips/sdk5.8.2~3094
X-Git-Url: https://git.baikalelectronics.ru/?a=commitdiff_plain;h=2cbb20123c1f75adffacf75dfa04202272523719;p=kernel.git

usb: host: Fix refcount leak in ehci_hcd_ppc_of_probe

[ Upstream commit a85254b1d7fccb4deffaeb29cad6e729c9decb5c ]

of_find_compatible_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.

Fixes: 2c9458645465 ("USB: powerpc: Workaround for the PPC440EPX USBH_23 errata [take 3]")
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220602110849.58549-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c
index 6bbaee74f7e7d..28a19693c19fe 100644
--- a/drivers/usb/host/ehci-ppc-of.c
+++ b/drivers/usb/host/ehci-ppc-of.c
@@ -148,6 +148,7 @@ static int ehci_hcd_ppc_of_probe(struct platform_device *op)
 		} else {
 			ehci->has_amcc_usb23 = 1;
 		}
+		of_node_put(np);
 	}
 
 	if (of_get_property(dn, "big-endian", NULL)) {