From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 10 May 2018 20:17:30 +0000 (-0700)
Subject: net: phy: phylink: Release link GPIO
X-Git-Tag: v4.17.12~139
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a35b70b64fa0fd6c9ba3b66d4555e807c1f51d90;p=thirdparty%2Fkernel%2Fstable.git

net: phy: phylink: Release link GPIO

[ Upstream commit daab3349ad1a69663ccad278ed71d55974d104b4 ]

We are not releasing the link GPIO descriptor with gpiod_put() which results in
subsequent probing to get -EBUSY when calling fwnode_get_named_gpiod(). Fix this
by doing the release in phylink_destroy().

Fixes: 9525ae83959b ("phylink: add phylink infrastructure")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index c582b2d7546c3..18ee7546e4a83 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -612,6 +612,8 @@ void phylink_destroy(struct phylink *pl)
 {
 	if (pl->sfp_bus)
 		sfp_unregister_upstream(pl->sfp_bus);
+	if (!IS_ERR(pl->link_gpio))
+		gpiod_put(pl->link_gpio);
 
 	cancel_work_sync(&pl->resolve);
 	kfree(pl);