From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AB855633 for ; Wed, 2 Nov 2022 03:31:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 590A9C433D6; Wed, 2 Nov 2022 03:31:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1667359895; bh=8l7zZ1F3jGrazXqtq8ceaUZBC+AnRTTajoYHCE1lBUU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TDfD77eDe4IV24L/9nME6p1N5GKbYB5h0E+leB9LfKgaxCJjyu+eEvIoZp/qUlm/1 4qoLHVvJUmuGiah4dMiMh2Q03dHlPcoAsrA+BbwVQ3RaZQgV8nvCA7d/ucuaBGfTZY 6ftOCyOxfM62er+LW+ZSEogZCDRZFA4YyjWNu/Q4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yang Yingliang , Jakub Kicinski , Sasha Levin Subject: [PATCH 4.19 53/78] net: netsec: fix error handling in netsec_register_mdio() Date: Wed, 2 Nov 2022 03:34:38 +0100 Message-Id: <20221102022054.530557088@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221102022052.895556444@linuxfoundation.org> References: <20221102022052.895556444@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Yang Yingliang [ Upstream commit 94423589689124e8cd145b38a1034be7f25835b2 ] If phy_device_register() fails, phy_device_free() need be called to put refcount, so memory of phy device and device name can be freed in callback function. If get_phy_device() fails, mdiobus_unregister() need be called, or it will cause warning in mdiobus_free() and kobject is leaked. Fixes: 533dd11a12f6 ("net: socionext: Add Synquacer NetSec driver") Signed-off-by: Yang Yingliang Link: https://lore.kernel.org/r/20221019064104.3228892-1-yangyingliang@huawei.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/socionext/netsec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/socionext/netsec.c b/drivers/net/ethernet/socionext/netsec.c index 3693a59b6d01..5c0629b4fccc 100644 --- a/drivers/net/ethernet/socionext/netsec.c +++ b/drivers/net/ethernet/socionext/netsec.c @@ -1549,11 +1549,13 @@ static int netsec_register_mdio(struct netsec_priv *priv, u32 phy_addr) ret = PTR_ERR(priv->phydev); dev_err(priv->dev, "get_phy_device err(%d)\n", ret); priv->phydev = NULL; + mdiobus_unregister(bus); return -ENODEV; } ret = phy_device_register(priv->phydev); if (ret) { + phy_device_free(priv->phydev); mdiobus_unregister(bus); dev_err(priv->dev, "phy_device_register err(%d)\n", ret); -- 2.35.1