tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y head: a3e34830d91255b6038c86c49a880c59a1aba945 commit: 2cd065b916811dc197b0d0069cec2f64f7203af0 [342/3218] serial: mxs-auart: add missed iounmap() in probe failure and remove config: openrisc-randconfig-s031-20201116 (attached as .config) compiler: or1k-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-107-gaf3512a6-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.gi... git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc linux-5.4.y git checkout 2cd065b916811dc197b0d0069cec2f64f7203af0 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=openrisc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; "sparse warnings: (new ones prefixed by >>)" drivers/tty/serial/mxs-auart.c:1753:24: sparse: expected void *addr drivers/tty/serial/mxs-auart.c:1770:24: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *addr @@ got unsigned char [noderef] <asn:2> *membase @@ drivers/tty/serial/mxs-auart.c:1770:24: sparse: expected void *addr drivers/tty/serial/mxs-auart.c:1770:24: sparse: got unsigned char [noderef] <asn:2> *membase drivers/tty/serial/mxs-auart.c: note: in included file (through arch/openrisc/include/asm/io.h, include/linux/io.h, include/linux/irq.h, ...): include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restricted __le32 [usertype] @@ include/asm-generic/io.h:299:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:299:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restricted __le32 [usertype] @@ include/asm-generic/io.h:299:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:299:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restricted __le32 [usertype] @@ include/asm-generic/io.h:299:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:299:22: sparse: got restricted __le32 [usertype] vim +1753 drivers/tty/serial/mxs-auart.c 1643 1644 static int mxs_auart_probe(struct platform_device *pdev) 1645 { 1646 const struct of_device_id *of_id = 1647 of_match_device(mxs_auart_dt_ids, &pdev->dev); 1648 struct mxs_auart_port *s; 1649 u32 version; 1650 int ret, irq; 1651 struct resource *r; 1652 1653 s = devm_kzalloc(&pdev->dev, sizeof(*s), GFP_KERNEL); 1654 if (!s) 1655 return -ENOMEM; 1656 1657 s->port.dev = &pdev->dev; 1658 s->dev = &pdev->dev; 1659 1660 ret = serial_mxs_probe_dt(s, pdev); 1661 if (ret > 0) 1662 s->port.line = pdev->id < 0 ? 0 : pdev->id; 1663 else if (ret < 0) 1664 return ret; 1665 if (s->port.line >= ARRAY_SIZE(auart_port)) { 1666 dev_err(&pdev->dev, "serial%d out of range\n", s->port.line); 1667 return -EINVAL; 1668 } 1669 1670 if (of_id) { 1671 pdev->id_entry = of_id->data; 1672 s->devtype = pdev->id_entry->driver_data; 1673 } 1674 1675 ret = mxs_get_clks(s, pdev); 1676 if (ret) 1677 return ret; 1678 1679 r = platform_get_resource(pdev, IORESOURCE_MEM, 0); 1680 if (!r) { 1681 ret = -ENXIO; 1682 goto out_disable_clks; 1683 } 1684 1685 s->port.mapbase = r->start; 1686 s->port.membase = ioremap(r->start, resource_size(r)); 1687 if (!s->port.membase) { 1688 ret = -ENOMEM; 1689 goto out_disable_clks; 1690 } 1691 s->port.ops = &mxs_auart_ops; 1692 s->port.iotype = UPIO_MEM; 1693 s->port.fifosize = MXS_AUART_FIFO_SIZE; 1694 s->port.uartclk = clk_get_rate(s->clk); 1695 s->port.type = PORT_IMX; 1696 1697 mxs_init_regs(s); 1698 1699 s->mctrl_prev = 0; 1700 1701 irq = platform_get_irq(pdev, 0); 1702 if (irq < 0) { 1703 ret = irq; 1704 goto out_iounmap; 1705 } 1706 1707 s->port.irq = irq; 1708 ret = devm_request_irq(&pdev->dev, irq, mxs_auart_irq_handle, 0, 1709 dev_name(&pdev->dev), s); 1710 if (ret) 1711 goto out_iounmap; 1712 1713 platform_set_drvdata(pdev, s); 1714 1715 ret = mxs_auart_init_gpios(s, &pdev->dev); 1716 if (ret) { 1717 dev_err(&pdev->dev, "Failed to initialize GPIOs.\n"); 1718 goto out_iounmap; 1719 } 1720 1721 /* 1722 * Get the GPIO lines IRQ 1723 */ 1724 ret = mxs_auart_request_gpio_irq(s); 1725 if (ret) 1726 goto out_iounmap; 1727 1728 auart_port[s->port.line] = s; 1729 1730 mxs_auart_reset_deassert(s); 1731 1732 ret = uart_add_one_port(&auart_driver, &s->port); 1733 if (ret) 1734 goto out_free_qpio_irq; 1735 1736 /* ASM9260 don't have version reg */ 1737 if (is_asm9260_auart(s)) { 1738 dev_info(&pdev->dev, "Found APPUART ASM9260\n"); 1739 } else { 1740 version = mxs_read(s, REG_VERSION); 1741 dev_info(&pdev->dev, "Found APPUART %d.%d.%d\n", 1742 (version >> 24) & 0xff, 1743 (version >> 16) & 0xff, version & 0xffff); 1744 } 1745 1746 return 0; 1747 1748 out_free_qpio_irq: 1749 mxs_auart_free_gpio_irq(s); 1750 auart_port[pdev->id] = NULL; 1751 1752 out_iounmap: 1754 1755 out_disable_clks: 1756 if (is_asm9260_auart(s)) { 1757 clk_disable_unprepare(s->clk); 1758 clk_disable_unprepare(s->clk_ahb); 1759 } 1760 return ret; 1761 } 1762 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org