Hi Bharat, Thank you for the patch! Perhaps something to improve: url: https://github.com/0day-ci/linux/commits/Bharat-Kumar-Gogada/Adding-support-for-versal-CPM-as-Root-Port-driver/20191223-193219 base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> New smatch warnings: drivers/pci/controller/pcie-xilinx-cpm.c:330 xilinx_cpm_pcie_init_irq_domain() warn: passing zero to 'PTR_ERR' Old smatch warnings: drivers/pci/controller/pcie-xilinx-cpm.c:338 xilinx_cpm_pcie_init_irq_domain() warn: passing zero to 'PTR_ERR' # https://github.com/0day-ci/linux/commit/f107713acb796e598f16a23b33af74fa382921b2 git remote add linux-review https://github.com/0day-ci/linux git remote update linux-review git checkout f107713acb796e598f16a23b33af74fa382921b2 vim +/PTR_ERR +330 drivers/pci/controller/pcie-xilinx-cpm.c f107713acb796e Bharat Kumar Gogada 2019-12-20 320 static int xilinx_cpm_pcie_init_irq_domain(struct xilinx_cpm_pcie_port *port) f107713acb796e Bharat Kumar Gogada 2019-12-20 321 { f107713acb796e Bharat Kumar Gogada 2019-12-20 322 struct device *dev = port->dev; f107713acb796e Bharat Kumar Gogada 2019-12-20 323 struct device_node *node = dev->of_node; f107713acb796e Bharat Kumar Gogada 2019-12-20 324 struct device_node *pcie_intc_node; f107713acb796e Bharat Kumar Gogada 2019-12-20 325 f107713acb796e Bharat Kumar Gogada 2019-12-20 326 /* Setup INTx */ f107713acb796e Bharat Kumar Gogada 2019-12-20 327 pcie_intc_node = of_get_next_child(node, NULL); f107713acb796e Bharat Kumar Gogada 2019-12-20 328 if (!pcie_intc_node) { ^^^^^^^^^^^^^^^ f107713acb796e Bharat Kumar Gogada 2019-12-20 329 dev_err(dev, "No PCIe Intc node found\n"); f107713acb796e Bharat Kumar Gogada 2019-12-20 @330 return PTR_ERR(pcie_intc_node); ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ (This means success). f107713acb796e Bharat Kumar Gogada 2019-12-20 331 } f107713acb796e Bharat Kumar Gogada 2019-12-20 332 f107713acb796e Bharat Kumar Gogada 2019-12-20 333 port->leg_domain = irq_domain_add_linear(pcie_intc_node, INTX_NUM, f107713acb796e Bharat Kumar Gogada 2019-12-20 334 &intx_domain_ops, f107713acb796e Bharat Kumar Gogada 2019-12-20 335 port); f107713acb796e Bharat Kumar Gogada 2019-12-20 336 if (!port->leg_domain) { f107713acb796e Bharat Kumar Gogada 2019-12-20 337 dev_err(dev, "Failed to get a INTx IRQ domain\n"); f107713acb796e Bharat Kumar Gogada 2019-12-20 338 return PTR_ERR(port->leg_domain); f107713acb796e Bharat Kumar Gogada 2019-12-20 339 } f107713acb796e Bharat Kumar Gogada 2019-12-20 340 f107713acb796e Bharat Kumar Gogada 2019-12-20 341 return 0; f107713acb796e Bharat Kumar Gogada 2019-12-20 342 } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation