[gerg-m68knommu:dt 2/22] drivers/tty/serial/mcf.c:586:25: sparse: sparse: unsigned value that used to be signed checked against zero?
kernel test robot <[email protected]>
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:::::: :::::: Manual check reason: "low confidence static check warning: drivers/tty/serial/mcf.c:586:25: sparse: sparse: unsigned value that used to be signed checked against zero?" :::::: BCC: [email protected] CC: [email protected] CC: [email protected] CC: [email protected] TO: Greg Ungerer <[email protected]> tree: https://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu.git dt head: 76a231d031905d3bbc982b9a3d92619ce917e306 commit: 191a962ceb628c9ba07bb6d5687820afaa2823fb [2/22] serial: mcf: convert to use proper platform resources :::::: branch date: 3 days ago :::::: commit date: 3 days ago config: m68k-randconfig-r122-20260813 (https://download.01.org/0day-ci/archive/20260814/[email protected]/config) compiler: m68k-linux-gcc (GCC) 15.2.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260814/[email protected]/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <[email protected]> | Closes: https://lore.kernel.org/r/[email protected]/ sparse warnings: (new ones prefixed by >>) >> drivers/tty/serial/mcf.c:586:25: sparse: sparse: unsigned value that used to be signed checked against zero? drivers/tty/serial/mcf.c:585:37: sparse: signed value source vim +586 drivers/tty/serial/mcf.c 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 570 9671f09921d93e drivers/tty/serial/mcf.c Bill Pemberton 2012-11-19 571 static int mcf_probe(struct platform_device *pdev) 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 572 { 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 573 struct uart_port *port; 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 574 struct resource *res; 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 575 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 576 if (pdev->id >= MCF_MAXPORTS) 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 577 return -ENODEV; 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 578 port = &mcf_ports[pdev->id].port; 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 579 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 580 port->membase = devm_platform_get_and_ioremap_resource(pdev, 0, &res); 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 581 if (IS_ERR(port->membase)) 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 582 return PTR_ERR(port->membase); 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 583 port->mapbase = res->start; 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 584 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 585 port->irq = platform_get_irq(pdev, 0); 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 @586 if (port->irq < 0) 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 587 return port->irq; 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 588 191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 589 port->line = pdev->id; 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 590 port->type = PORT_MCF; 201d8975ae5ada drivers/tty/serial/mcf.c Greg Ungerer 2015-01-08 591 port->dev = &pdev->dev; 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 592 port->iotype = SERIAL_IO_MEM; 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 593 port->uartclk = MCF_BUSCLK; 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 594 port->ops = &mcf_uart_ops; 5fda7a0e715c32 drivers/tty/serial/mcf.c Peter Hurley 2014-06-16 595 port->flags = UPF_BOOT_AUTOCONF; 2fc0184dae7be5 drivers/tty/serial/mcf.c Ricardo Ribalda 2014-11-06 596 port->rs485_config = mcf_config_rs485; 0139da50dc53f0 drivers/tty/serial/mcf.c Ilpo Järvinen 2022-07-04 597 port->rs485_supported = mcf_rs485_supported; 4be87603b6dc9e drivers/tty/serial/mcf.c Angelo Dureghello 2020-10-02 598 port->has_sysrq = IS_ENABLED(CONFIG_SERIAL_MCF_CONSOLE); 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 599 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 600 uart_add_one_port(&mcf_driver, port); 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 601 return 0; 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 602 } 49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 603 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki