[PATCH net] net: stmmac: rk: put the PHY clock on remove

[Russell King (Oracle)]

The PHY clock (bsp_priv->clk_phy) is obtained using of_clk_get(), which
doesn't take part in the devm release. Therefore, when a device is
unbound, this clock needs to be explicitly put. Fix this.

Fixes: fecd4d7eef8b ("net: stmmac: dwmac-rk: Add integrated PHY support")
Signed-off-by: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>
---
Spotted this resource leak while making other changes to dwmac-rk.
Would be great if the dwmac-rk maintainers can test it.

 drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 79b92130a03f..4a315c87c4d0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -1770,6 +1770,9 @@ static void rk_gmac_remove(struct platform_device *pdev)
 	stmmac_dvr_remove(&pdev->dev);
 
 	rk_gmac_powerdown(bsp_priv);
+
+	if (plat->phy_node && bsp_priv->integrated_phy)
+		clk_put(bsp_priv->clk_phy);
 }
 
 #ifdef CONFIG_PM_SLEEP
-- 
2.30.2