From: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Date: Wed, 22 May 2019 10:05:09 +0000
Subject: net: stmmac: fix reset gpio free missing
Git-commit: 49ce881c0d4c4a7a35358d9dccd5f26d0e56fc61
Patch-mainline: 5.2-rc3
References: networking-stable-19_05_31

Commit 984203ceff27 ("net: stmmac: mdio: remove reset gpio free")
removed the reset gpio free, when the driver is unbinded or rmmod,
we miss the gpio free.

This patch uses managed API to request the reset gpio, so that the
gpio could be freed properly.

Fixes: 984203ceff27 ("net: stmmac: mdio: remove reset gpio free")
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -157,7 +157,8 @@ int stmmac_mdio_reset(struct mii_bus *bu
 			of_property_read_u32_array(np,
 				"snps,reset-delays-us", data->delays, 3);
 
-			if (gpio_request(data->reset_gpio, "mdio-reset"))
+			if (devm_gpio_request(priv->device, data->reset_gpio,
+					      "mdio-reset"))
 				return 0;
 		}