Backtrace

BUG: kernel NULL pointer dereference, address: 00000000000003a0
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0 
Oops: 0002 [#1] PREEMPT SMP PTI
CPU: 2 PID: 262 Comm: kworker/2:3 Tainted: G         C         6.0.15-300.fc37.x86_64 #1
Hardware name: iBall iBall CompBook i360/Cherry Trail CR, BIOS iBallCompBooki360-081-B 08/11/2018
Workqueue: events power_supply_changed_work
RIP: 0010:_raw_spin_lock_irqsave+0x2a/0x50
Code: 0f 1f 44 00 00 55 53 48 89 fb 9c 58 0f 1f 40 00 48 89 c5 fa 0f 1f 44 00 00 bf 01 00 00 00 e8 dd 8e 35 ff 31 c0 ba 01 00 00 00 <f0> 0f b1 13 75 0a 48 89 e8 5b 5d c3 cc cc cc cc 89 c6 48 89 df e8
RSP: 0000:ffffb8bb403bfdc0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 00000000000003a0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffffb680fe45 RDI: 0000000000000000
RBP: 0000000000000246 R08: ffff89967ad313e8 R09: ffff8996761d0d34
R10: 0000000000000007 R11: 0000000000000002 R12: 00000000000003a0
R13: 0000000000000038 R14: ffff899603e1a800 R15: ffff899603e1ab30
FS:  0000000000000000(0000) GS:ffff89967ad00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000003a0 CR3: 0000000002ad6000 CR4: 00000000001006e0
Call Trace:
 <TASK>
 power_supply_changed+0x23/0x90
 ? __power_supply_get_supplier_property+0x50/0x50
 __power_supply_changed_work+0x30/0x40
 class_for_each_device+0xcc/0x100
 ? preempt_count_add+0x6a/0xa0
 power_supply_changed_work+0x5f/0xe0
 process_one_work+0x1c7/0x380
 worker_thread+0x4d/0x380
 ? _raw_spin_lock_irqsave+0x23/0x50
 ? rescuer_thread+0x380/0x380
 kthread+0xe9/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x22/0x30
 </TASK>
Modules linked in: snd_sof_acpi_intel_byt snd_sof_acpi snd_sof_intel_atom irqbypass snd_sof_xtensa_dsp snd_sof uvcvideo intel_cstate r8723bs(C) videobuf2_vmalloc snd_sof_utils pcspkr processor_thermal_device_pci_legacy videobuf2_memops processor_thermal_device videobuf2_v4l2 extcon_axp288 snd_intel_sst_acpi videobuf2_common processor_thermal_rfim axp288_charger snd_intel_sst_core processor_thermal_mbox axp288_adc axp288_fuel_gauge axp20x_pek snd_soc_sst_atom_hifi2_platform videodev libarc4 processor_thermal_rapl intel_rapl_common snd_soc_acpi_intel_match mei_txe cfg80211 snd_soc_acpi mc joydev mei intel_xhci_usb_role_switch snd_hdmi_lpe_audio lpc_ich intel_atomisp2_pm intel_soc_dts_iosf snd_soc_rt5651 hci_uart snd_intel_dspcfg snd_intel_sdw_acpi snd_soc_rl6231 snd_soc_core snd_compress btqca ac97_bus btrtl btbcm snd_pcm_dmaengine snd_seq btintel intel_hid kxcjk_1013 snd_seq_device sparse_keymap bluetooth industrialio_triggered_buffer snd_pcm kfifo_buf silead industrialio
 spi_pxa2xx_platform snd_timer snd soundcore rfkill dw_dmac int3400_thermal acpi_thermal_rel int3403_thermal int3406_thermal int340x_thermal_zone soc_button_array acpi_pad intel_int0002_vgpio zram i915 hid_logitech_hidpp crct10dif_pclmul crc32_pclmul mmc_block crc32c_intel polyval_generic ghash_clmulni_intel wdat_wdt drm_buddy drm_display_helper cec hid_logitech_dj ttm video sdhci_acpi sdhci mmc_core pwm_lpss_platform pwm_lpss ip6_tables ip_tables fuse
CR2: 00000000000003a0