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Miller" , Eric Dumazet , Paolo Abeni , Andrew Lunn , Simon Horman , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Shitalkumar Gandhi Subject: [PATCH net] net: xgene: fix mdio_np leak in xgene_mdiobus_register() Date: Thu, 7 May 2026 19:50:24 +0530 Message-Id: <20260507142024.811543-1-shitalkumar.gandhi@cambiumnetworks.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The for_each_child_of_node() loop captures mdio_np via break, holding the refcount. of_mdiobus_register() does not consume the reference, so it leaks on success. Put it after registration. Fixes: e6ad767305eb ("drivers: net: Add APM X-Gene SoC ethernet driver supp= ort.") Signed-off-by: Shitalkumar Gandhi Reviewed-by: Simon Horman --- drivers/net/ethernet/apm/xgene/xgene_enet_hw.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/e= thernet/apm/xgene/xgene_enet_hw.c index b854b6b42d77..2926e1e59941 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c @@ -910,7 +910,9 @@ static int xgene_mdiobus_register(struct xgene_enet_pda= ta *pdata, return -ENXIO; } =20 - return of_mdiobus_register(mdio, mdio_np); + ret =3D of_mdiobus_register(mdio, mdio_np); + of_node_put(mdio_np); + return ret; } =20 /* Mask out all PHYs from auto probing. */ --=20 2.25.1