tree: https://github.com/l1k/linux spi_fixes_part2 head: 7e3aa793208e7679cbeaddd23911685c89efb115 commit: 87559c2497a3deb6b08b469522e5f2e16d2c59ad [5/15] spi: atmel-quadspi: Fix use-after-free on unbind config: arm-allyesconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/l1k/linux/commit/87559c2497a3deb6b08b469522e5f2e16d2c59ad git remote add l1k https://github.com/l1k/linux git fetch --no-tags l1k spi_fixes_part2 git checkout 87559c2497a3deb6b08b469522e5f2e16d2c59ad # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/spi/atmel-quadspi.c: In function 'atmel_qspi_probe': 594 | goto exit; | ^~~~ vim +/exit +594 drivers/spi/atmel-quadspi.c 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 530 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 531 static int atmel_qspi_probe(struct platform_device *pdev) 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 532 { 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 533 struct spi_controller *ctrl; 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 534 struct atmel_qspi *aq; 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 535 struct resource *res; 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 536 int irq, err = 0; 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 537 87559c2497a3deb drivers/spi/atmel-quadspi.c Lukas Wunner 2020-11-05 538 ctrl = devm_spi_alloc_master(&pdev->dev, sizeof(*aq)); 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 539 if (!ctrl) 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 540 return -ENOMEM; 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 541 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 542 ctrl->mode_bits = SPI_RX_DUAL | SPI_RX_QUAD | SPI_TX_DUAL | SPI_TX_QUAD; 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 543 ctrl->setup = atmel_qspi_setup; 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 544 ctrl->bus_num = -1; 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 545 ctrl->mem_ops = &atmel_qspi_mem_ops; 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 546 ctrl->num_chipselect = 1; 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 547 ctrl->dev.of_node = pdev->dev.of_node; 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 548 platform_set_drvdata(pdev, ctrl); 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 549 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 550 aq = spi_controller_get_devdata(ctrl); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 551 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 552 init_completion(&aq->cmd_completion); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 553 aq->pdev = pdev; 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 554 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 555 /* Map the registers */ 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 556 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "qspi_base"); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 557 aq->regs = devm_ioremap_resource(&pdev->dev, res); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 558 if (IS_ERR(aq->regs)) { 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 559 dev_err(&pdev->dev, "missing registers\n"); 87559c2497a3deb drivers/spi/atmel-quadspi.c Lukas Wunner 2020-11-05 560 return PTR_ERR(aq->regs); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 561 } 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 562 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 563 /* Map the AHB memory */ 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 564 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "qspi_mmap"); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 565 aq->mem = devm_ioremap_resource(&pdev->dev, res); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 566 if (IS_ERR(aq->mem)) { 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 567 dev_err(&pdev->dev, "missing AHB memory\n"); 87559c2497a3deb drivers/spi/atmel-quadspi.c Lukas Wunner 2020-11-05 568 return PTR_ERR(aq->mem); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 569 } 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 570 8e093ea4d359337 drivers/spi/atmel-quadspi.c Tudor Ambarus 2020-02-28 571 aq->mmap_size = resource_size(res); 8e093ea4d359337 drivers/spi/atmel-quadspi.c Tudor Ambarus 2020-02-28 572 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 573 /* Get the peripheral clock */ bd7905e2fed7047 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 574 aq->pclk = devm_clk_get(&pdev->dev, "pclk"); bd7905e2fed7047 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 575 if (IS_ERR(aq->pclk)) bd7905e2fed7047 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 576 aq->pclk = devm_clk_get(&pdev->dev, NULL); bd7905e2fed7047 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 577 bd7905e2fed7047 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 578 if (IS_ERR(aq->pclk)) { 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 579 dev_err(&pdev->dev, "missing peripheral clock\n"); 87559c2497a3deb drivers/spi/atmel-quadspi.c Lukas Wunner 2020-11-05 580 return PTR_ERR(aq->pclk); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 581 } 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 582 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 583 /* Enable the peripheral clock */ bd7905e2fed7047 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 584 err = clk_prepare_enable(aq->pclk); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 585 if (err) { 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 586 dev_err(&pdev->dev, "failed to enable the peripheral clock\n"); 87559c2497a3deb drivers/spi/atmel-quadspi.c Lukas Wunner 2020-11-05 587 return err; 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 588 } 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 589 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 590 aq->caps = of_device_get_match_data(&pdev->dev); 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 591 if (!aq->caps) { 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 592 dev_err(&pdev->dev, "Could not retrieve QSPI caps\n"); 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 593 err = -EINVAL; 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 @594 goto exit; 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 595 } 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 596 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 597 if (aq->caps->has_qspick) { 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 598 /* Get the QSPI system clock */ 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 599 aq->qspick = devm_clk_get(&pdev->dev, "qspick"); 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 600 if (IS_ERR(aq->qspick)) { 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 601 dev_err(&pdev->dev, "missing system clock\n"); 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 602 err = PTR_ERR(aq->qspick); 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 603 goto disable_pclk; 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 604 } 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 605 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 606 /* Enable the QSPI system clock */ 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 607 err = clk_prepare_enable(aq->qspick); 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 608 if (err) { 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 609 dev_err(&pdev->dev, 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 610 "failed to enable the QSPI system clock\n"); 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 611 goto disable_pclk; 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 612 } 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 613 } 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 614 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 615 /* Request the IRQ */ 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 616 irq = platform_get_irq(pdev, 0); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 617 if (irq < 0) { 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 618 err = irq; 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 619 goto disable_qspick; 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 620 } 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 621 err = devm_request_irq(&pdev->dev, irq, atmel_qspi_interrupt, 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 622 0, dev_name(&pdev->dev), aq); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 623 if (err) 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 624 goto disable_qspick; 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 625 5b74e9a306267be drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-06-28 626 atmel_qspi_init(aq); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 627 2d30ac5ed633f5a drivers/mtd/spi-nor/atmel-quadspi.c Piotr Bugalski 2018-11-05 628 err = spi_register_controller(ctrl); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 629 if (err) 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 630 goto disable_qspick; 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 631 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 632 return 0; 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 633 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 634 disable_qspick: 2e5c88887358640 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 635 clk_disable_unprepare(aq->qspick); bd7905e2fed7047 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 636 disable_pclk: bd7905e2fed7047 drivers/spi/atmel-quadspi.c Tudor Ambarus 2019-02-05 637 clk_disable_unprepare(aq->pclk); 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 638 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 639 return err; 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 640 } 161aaab8a067a96 drivers/mtd/spi-nor/atmel-quadspi.c Cyrille Pitchen 2016-06-13 641 :::::: The code at line 594 was first introduced by commit :::::: 2e5c888873586400e3e9197514995458c7f4c3e0 spi: atmel-quadspi: add support for sam9x60 qspi controller :::::: TO: Tudor Ambarus <tudor.ambarus(a)microchip.com&gt; :::::: CC: Mark Brown <broonie(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org