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Sat, 10 Jul 2021 19:26:18 +0000 From: Colin Foster To: andrew@lunn.ch, vivien.didelot@gmail.com, f.fainelli@gmail.com, olteanv@gmail.com, davem@davemloft.net, kuba@kernel.org, robh+dt@kernel.org, claudiu.manoil@nxp.com, alexandre.belloni@bootlin.com, UNGLinuxDriver@microchip.com, linux@armlinux.org.uk Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH v2 net-next 3/8] net: dsa: ocelot: felix: NULL check on variable Date: Sat, 10 Jul 2021 12:25:57 -0700 Message-Id: <20210710192602.2186370-4-colin.foster@in-advantage.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210710192602.2186370-1-colin.foster@in-advantage.com> References: <20210710192602.2186370-1-colin.foster@in-advantage.com> X-ClientProxiedBy: MWHPR12CA0042.namprd12.prod.outlook.com (2603:10b6:301:2::28) To MWHPR1001MB2351.namprd10.prod.outlook.com (2603:10b6:301:35::37) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (67.185.175.147) by MWHPR12CA0042.namprd12.prod.outlook.com (2603:10b6:301:2::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4308.19 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: in-advantage.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7b4e773c-a08d-49b4-2812-08d943d89769 X-MS-Exchange-CrossTenant-AuthSource: MWHPR1001MB2351.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Jul 2021 19:26:18.3682 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 48e842ca-fbd8-4633-a79d-0c955a7d3aae X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: YY6fX4+QaVndHUbcpS32iqisWGjg/roqKVv/F5/TGSdCXxAlv2d9vyR9jt23Kg5i+MUtdYVhjYowPFmWEUsNp2CbBHGm4rbHQH2uhNv9bkM= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR10MB1709 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC Add NULL check before dereferencing array Signed-off-by: Colin Foster --- drivers/net/dsa/ocelot/felix.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c index ce607fbaaa3a..74ae322b2126 100644 --- a/drivers/net/dsa/ocelot/felix.c +++ b/drivers/net/dsa/ocelot/felix.c @@ -852,7 +852,7 @@ static void felix_phylink_mac_config(struct dsa_switch *ds, int port, struct felix *felix = ocelot_to_felix(ocelot); struct dsa_port *dp = dsa_to_port(ds, port); - if (felix->pcs[port]) + if (felix->pcs && felix->pcs[port]) phylink_set_pcs(dp->pl, &felix->pcs[port]->pcs); }