tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: a60b1e1fe9ca5f9d9a79e89a8d71228a8e04d35c commit: 902a66e08ceaadb9a7a1ab3a4f3af611cd1d8cba [4603/5468] lan743x: correctly handle chips with internal PHY config: x86_64-randconfig-m001-20201111 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; smatch warnings: drivers/net/ethernet/microchip/lan743x_main.c:1049 lan743x_phy_open() error: uninitialized symbol 'phydev'. vim +/phydev +1049 drivers/net/ethernet/microchip/lan743x_main.c 23f0703c125be49 Bryan Whitehead 2018-03-05 1019 static int lan743x_phy_open(struct lan743x_adapter *adapter) 23f0703c125be49 Bryan Whitehead 2018-03-05 1020 { 23f0703c125be49 Bryan Whitehead 2018-03-05 1021 struct lan743x_phy *phy = &adapter->phy; 6f197fb63850b26 Roelof Berg 2020-05-29 1022 struct device_node *phynode; 23f0703c125be49 Bryan Whitehead 2018-03-05 1023 struct phy_device *phydev; 23f0703c125be49 Bryan Whitehead 2018-03-05 1024 struct net_device *netdev; 23f0703c125be49 Bryan Whitehead 2018-03-05 1025 int ret = -EIO; 23f0703c125be49 Bryan Whitehead 2018-03-05 1026 23f0703c125be49 Bryan Whitehead 2018-03-05 1027 netdev = adapter->netdev; 6f197fb63850b26 Roelof Berg 2020-05-29 1028 phynode = of_node_get(adapter->pdev->dev.of_node); 6f197fb63850b26 Roelof Berg 2020-05-29 1029 6f197fb63850b26 Roelof Berg 2020-05-29 1030 if (phynode) { 902a66e08ceaadb Sven Van Asbroeck 2020-11-08 1031 /* try devicetree phy, or fixed link */ 6f197fb63850b26 Roelof Berg 2020-05-29 1032 of_get_phy_mode(phynode, &adapter->phy_mode); 6f197fb63850b26 Roelof Berg 2020-05-29 1033 6f197fb63850b26 Roelof Berg 2020-05-29 1034 if (of_phy_is_fixed_link(phynode)) { 6f197fb63850b26 Roelof Berg 2020-05-29 1035 ret = of_phy_register_fixed_link(phynode); 6f197fb63850b26 Roelof Berg 2020-05-29 1036 if (ret) { 6f197fb63850b26 Roelof Berg 2020-05-29 1037 netdev_err(netdev, 6f197fb63850b26 Roelof Berg 2020-05-29 1038 "cannot register fixed PHY\n"); 6f197fb63850b26 Roelof Berg 2020-05-29 1039 of_node_put(phynode); 6f197fb63850b26 Roelof Berg 2020-05-29 1040 goto return_error; 6f197fb63850b26 Roelof Berg 2020-05-29 1041 } 6f197fb63850b26 Roelof Berg 2020-05-29 1042 } 6f197fb63850b26 Roelof Berg 2020-05-29 1043 phydev = of_phy_connect(netdev, phynode, 6f197fb63850b26 Roelof Berg 2020-05-29 1044 lan743x_phy_link_status_change, 0, 6f197fb63850b26 Roelof Berg 2020-05-29 1045 adapter->phy_mode); 6f197fb63850b26 Roelof Berg 2020-05-29 1046 of_node_put(phynode); 902a66e08ceaadb Sven Van Asbroeck 2020-11-08 1047 } Not initialized on else path. 902a66e08ceaadb Sven Van Asbroeck 2020-11-08 1048 902a66e08ceaadb Sven Van Asbroeck 2020-11-08 @1049 if (!phydev) { ^^^^^^^ 902a66e08ceaadb Sven Van Asbroeck 2020-11-08 1050 /* try internal phy */ 23f0703c125be49 Bryan Whitehead 2018-03-05 1051 phydev = phy_find_first(adapter->mdiobus); 23f0703c125be49 Bryan Whitehead 2018-03-05 1052 if (!phydev) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org