From: "Matwey V. Kornilov" spear13xx_pcie_driver.driver is allocated in text.init section and then the pointer to it is passed futher. This patch is to avoid crashes like the following, when freed memory is used: #0 __device_attach (drv=0xc0ed5608 , data=0xdb622610) at ../drivers/base/dd.c:409 #1 0xc07a4798 in bus_for_each_drv (bus=<optimized out>, start=<optimized out>, data=0xda0, fn=0xc07a6740 <__device_attach>) at ../drivers/base/bus.c:463 #2 0xc07a6324 in device_attach (dev=0xdb622610) at ../drivers/base/dd.c:447 #3 0xc07a5814 in bus_probe_device (dev=0xdb622610) at ../drivers/base/bus.c:558 #4 0xc07a38d8 in device_add (dev=<optimized out>) at ../drivers/base/core.c:1058 #5 0xc08b6a5c in of_device_add (ofdev=<optimized out>) at ../drivers/of/device.c:66 #6 0xc08b742c in of_platform_device_create_pdata (np=<optimized out>, bus_id=0x0 <__vectors_start>, platform_data=0x0 <__vectors_start>, parent=<optimized out>) at ../drivers/of/platform.c:241 #7 0xc08b7568 in of_platform_bus_create (bus=0xdfa46780, matches=0x0 <__vectors_start>, lookup=0x0 <__vectors_start>, parent=0xdb183410, strict=true) at ../drivers/of/platform.c:414 #8 0xc08b79bc in of_platform_populate (root=0xc0ed5608 , matches=0xdb622610, lookup=0xda0, parent=0xc07a6740 <__device_attach>) at ../drivers/of/platform.c:501 #9 0xbf000030 in am335x_child_probe (pdev=0xdb183400) at ../drivers/usb/musb/musb_am335x.c:12 #10 0xc07a83f0 in platform_drv_probe (_dev=0xdb183410) at ../drivers/base/platform.c:512 #11 0xc07a64e8 in really_probe (drv=<optimized out>, dev=<optimized out>) at ../drivers/base/dd.c:302 #12 driver_probe_device (drv=0xbf000234, dev=0xdb183410) at ../drivers/base/dd.c:399 #13 0xc07a6820 in __driver_attach (dev=0xdb183410, data=0xbf000234) at ../drivers/base/dd.c:477 #14 0xc07a46e8 in bus_for_each_dev (bus=<optimized out>, start=<optimized out>, data=0xda0, fn=0xc07a83a4 ) at ../drivers/base/bus.c:313 #15 0xc07a5ebc in driver_attach (drv=<optimized out>) at ../drivers/base/dd.c:496 #16 0xc07a5af0 in bus_add_driver (drv=0xbf000234) at ../drivers/base/bus.c:694 #17 0xc07a6fec in driver_register (drv=0xbf000234) at ../drivers/base/driver.c:167 #18 0xc0209c34 in do_one_initcall (fn=0xbf002000) at ../init/main.c:801 #19 0xc02e0494 in do_init_module (mod=<optimized out>) at ../kernel/module.c:3142 #20 load_module (info=0xdb6b1f54, uargs=<optimized out>, flags=<optimized out>) at ../kernel/module.c:3461 #21 0xc02e0a44 in SYSC_finit_module (flags=<optimized out>, uargs=<optimized out>, fd=<optimized out>) at ../kernel/module.c:3537 #22 SyS_finit_module (fd=7, uargs=-1225602132, flags=0) at ../kernel/module.c:3518 #23 0xc021a680 in ?? () Fixes: 6675ef212da (PCI: spear: Fix Section mismatch compilation warning for probe()) Signed-off-by: Matwey V. Kornilov Patch-mainline: Submitted, 2015-02-08 07:37:10 GMT - linux-pci@vger.kernel.org References: bko#92581 Signed-off-by: Matwey V. Kornilov --- Currently, JeOS-beaglebone doesn't boot up on 3.19-rc* only due to this issue. drivers/pci/host/pcie-spear13xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/host/pcie-spear13xx.c b/drivers/pci/host/pcie-spear13xx.c index 866465f..435651d 100644 --- a/drivers/pci/host/pcie-spear13xx.c +++ b/drivers/pci/host/pcie-spear13xx.c @@ -370,7 +370,7 @@ static const struct of_device_id spear13xx_pcie_of_match[] = { }; MODULE_DEVICE_TABLE(of, spear13xx_pcie_of_match); -static struct platform_driver spear13xx_pcie_driver __initdata = { +static struct platform_driver spear13xx_pcie_driver = { .probe = spear13xx_pcie_probe, .driver = { .name = "spear-pcie", -- 2.1.4 -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org