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76f2e2bc62
linux/drivers/gpu/drm/nouveau
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Lukas Wunner 76f2e2bc62 drm/nouveau/bl: Fix oops on driver unbind 
Unbinding nouveau on a dual GPU MacBook Pro oopses because we iterate
over the bl_connectors list in nouveau_backlight_exit() but skipped
initializing it in nouveau_backlight_init().  Stacktrace for posterity:

    BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
    IP: nouveau_backlight_exit+0x2b/0x70 [nouveau]
    nouveau_display_destroy+0x29/0x80 [nouveau]
    nouveau_drm_unload+0x65/0xe0 [nouveau]
    drm_dev_unregister+0x3c/0xe0 [drm]
    drm_put_dev+0x2e/0x60 [drm]
    nouveau_drm_device_remove+0x47/0x70 [nouveau]
    pci_device_remove+0x36/0xb0
    device_release_driver_internal+0x157/0x220
    driver_detach+0x39/0x70
    bus_remove_driver+0x51/0xd0
    pci_unregister_driver+0x2a/0xa0
    nouveau_drm_exit+0x15/0xfb0 [nouveau]
    SyS_delete_module+0x18c/0x290
    system_call_fast_compare_end+0xc/0x6f

Fixes: b53ac1ee12 ("drm/nouveau/bl: Do not register interface if Apple GMUX detected")
Cc: stable@vger.kernel.org # v4.10+
Cc: Pierre Moreau <pierre.morrow@free.fr>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-03-16 11:55:05 +10:00
..
dispnv04 main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
include drm/nouveau: Add support for BLCG on Kepler2 2018-02-02 15:24:09 +10:00
nvif drm/nouveau/mmu: define user interfaces to mmu vmm opertaions 2017-11-02 13:32:31 +10:00
nvkm drm/nouveau/mmu: ALIGN_DOWN correct variable 2018-03-16 11:55:04 +10:00
Kbuild drm/nouveau: separate constant-va tracking from nvkm vma structure 2017-11-02 13:32:21 +10:00
Kconfig drm/nouveau/mmu: implement new vmm backend 2017-11-02 13:32:27 +10:00
nouveau_abi16.c drm/nouveau: remove trivial cases of nvxx_device() usage 2017-11-02 13:32:32 +10:00
nouveau_abi16.h main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
nouveau_acpi.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nouveau_acpi.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nouveau_backlight.c drm/nouveau/bl: Fix oops on driver unbind 2018-03-16 11:55:05 +10:00
nouveau_bios.c drm/nouveau/bios: make const arrays hwsq_signature and edid_sig static 2017-11-03 09:12:10 +10:00
nouveau_bios.h
nouveau_bo.c Linux 4.15-rc8 2018-01-18 09:32:15 +10:00
nouveau_bo.h drm/nouveau/bo: add helper functions for handling pinned+mapped buffers 2018-02-02 15:24:06 +10:00
nouveau_chan.c drm/nouveau: switch over to new memory and vmm interfaces 2017-11-02 13:32:33 +10:00
nouveau_chan.h main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
nouveau_connector.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
nouveau_connector.h
nouveau_crtc.h drm/nouveau/kms/nv50: prepare for double-buffered LUTs 2018-02-02 15:24:06 +10:00
nouveau_debugfs.c
nouveau_debugfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nouveau_display.c drm/nouveau: Use drm_fb_helper_output_poll_changed() 2017-12-08 13:07:01 +01:00
nouveau_display.h main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
nouveau_dma.c drm/nouveau: separate constant-va tracking from nvkm vma structure 2017-11-02 13:32:21 +10:00
nouveau_dma.h drm/nouveau: separate constant-va tracking from nvkm vma structure 2017-11-02 13:32:21 +10:00
nouveau_dp.c
nouveau_drm.c drm/nouveau: fix race when adding delayed work items 2017-12-23 08:56:59 +10:00
nouveau_drv.h Merge branch 'linux-4.15' of git://github.com/skeggsb/linux into drm-fixes 2017-12-19 13:21:11 +10:00
nouveau_encoder.h
nouveau_fbcon.c drm/nouveau/fbcon: add module parameter to select bits-per-pixel 2018-02-02 15:24:05 +10:00
nouveau_fbcon.h drm/nouveau: Use drm_fb_helper_output_poll_changed() 2017-12-08 13:07:01 +01:00
nouveau_fence.c drm/nouveau: remove unused nouveau_fence_work() 2017-11-02 13:32:33 +10:00
nouveau_fence.h main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
nouveau_gem.c drm/ttm: remove ttm_bo_unreserve_ticket 2017-12-06 12:47:20 -05:00
nouveau_gem.h main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
nouveau_hwmon.c drm/nouveau/hwmon: Change permissions to numeric 2017-06-16 14:05:03 +10:00
nouveau_hwmon.h
nouveau_ioc32.c
nouveau_ioctl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nouveau_led.c
nouveau_led.h
nouveau_mem.c drm/nouveau: use alternate memory type for system-memory buffers with kind != 0 2017-12-19 10:16:37 +10:00
nouveau_mem.h drm/nouveau: switch over to new memory and vmm interfaces 2017-11-02 13:32:33 +10:00
nouveau_nvif.c
nouveau_platform.c
nouveau_platform.h
nouveau_prime.c
nouveau_reg.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nouveau_sgdma.c main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
nouveau_ttm.c drm/nouveau: use alternate memory type for system-memory buffers with kind != 0 2017-12-19 10:16:37 +10:00
nouveau_ttm.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nouveau_usif.c
nouveau_usif.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nouveau_vga.c drm/nouveau: Use drm_fb_helper_output_poll_changed() 2017-12-08 13:07:01 +01:00
nouveau_vga.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nouveau_vmm.c drm/nouveau: fix obvious memory leak 2017-12-20 08:40:36 +10:00
nouveau_vmm.h drm/nouveau/mmu: remove old vmm frontend 2017-11-02 13:32:33 +10:00
nv04_fbcon.c
nv04_fence.c
nv10_fence.c
nv10_fence.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nv17_fence.c
nv50_display.c drm/nouveau/kms/nv50: fix handling of gamma since atomic conversion 2018-02-02 15:24:07 +10:00
nv50_display.h
nv50_fbcon.c drm/nouveau: separate constant-va tracking from nvkm vma structure 2017-11-02 13:32:21 +10:00
nv50_fence.c
nv84_fence.c drm/nouveau: separate constant-va tracking from nvkm vma structure 2017-11-02 13:32:21 +10:00
nvc0_fbcon.c drm/nouveau: separate constant-va tracking from nvkm vma structure 2017-11-02 13:32:21 +10:00
nvc0_fence.c