linux-kernel - [PATCH net v2 3/5] net: fsl/fman: fix phydev reference leak

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Date:   Thu, 24 Nov 2016 19:21:29 +0100
From:   Johan Hovold <johan@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Madalin Bucur <madalin.bucur@....com>,
        Timur Tabi <timur@...eaurora.org>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Johan Hovold <johan@...nel.org>
Subject: [PATCH net v2 3/5] net: fsl/fman: fix phydev reference leak

Make sure to drop the reference taken by of_phy_find_device() during
initialisation when later freeing the struct fman_mac.

Fixes: 57ba4c9b56d8 ("fsl/fman: Add FMan MAC support")
Signed-off-by: Johan Hovold <johan@...nel.org>
---
 drivers/net/ethernet/freescale/fman/fman_memac.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/freescale/fman/fman_memac.c b/drivers/net/ethernet/freescale/fman/fman_memac.c
index 53ef51e3bd9e..71a5ded9d1de 100644
--- a/drivers/net/ethernet/freescale/fman/fman_memac.c
+++ b/drivers/net/ethernet/freescale/fman/fman_memac.c
@@ -1107,6 +1107,9 @@ int memac_free(struct fman_mac *memac)
 {
 	free_init_resources(memac);
 
+	if (memac->pcsphy)
+		put_device(&memac->pcsphy->mdio.dev);
+
 	kfree(memac->memac_drv_param);
 	kfree(memac);
 
-- 
2.7.3