On Mon, Dec 10, 2018 at 9:47 AM Daniel Vetter <daniel.vet...@ffwll.ch> wrote: > > Drivers might want to remove some sysfs files, which needs the same > locks and ends up angering lockdep. Relevant snippet of the stack > trace: > > kernfs_remove_by_name_ns+0x3b/0x80 > bus_remove_driver+0x92/0xa0 > acpi_video_unregister+0x24/0x40 > i915_driver_unload+0x42/0x130 [i915] > i915_pci_remove+0x19/0x30 [i915] > pci_device_remove+0x36/0xb0 > device_release_driver_internal+0x185/0x250 > unbind_store+0xaf/0x180 > kernfs_fop_write+0x104/0x190
Is the acpi_bus_unregister_driver() in acpi_video_unregister() the source of the lockdep unhappiness?
