Mediatek MT7921 WARN at drivers/base/devres.c devm_kfree

Issue

• Mediatek MT7921 WARN at drivers/base/devres.c devm_kfree
• MT7921 Call Trace on RHEL 8.8
• Upon boot, we encounter stack traces along the lines of:

[    4.210059] WARNING: CPU: 12 PID: 874 at drivers/base/devres.c:1055 devm_kfree+0x3b/0x50

[    4.210094] RIP: 0010:devm_kfree+0x3b/0x50

[    4.210103] Call Trace:
[    4.210105]  mt7921_init_acpi_sar+0x97/0x1f0 [mt7921_common]
[    4.210109]  mt7921_register_device+0x31f/0x530 [mt7921_common]
[    4.210111]  mt7921_pci_probe+0x27c/0x2b0 [mt7921e]
[    4.210113]  ? __pm_runtime_resume+0x54/0x80
[    4.210115]  local_pci_probe+0x42/0x80
[    4.210118]  pci_device_probe+0x109/0x1c0
[    4.210119]  __driver_probe_device+0x210/0x460
[    4.210121]  driver_probe_device+0x1f/0x90
[    4.210122]  __driver_attach+0x86/0x180
[    4.210123]  ? __device_attach_driver+0x110/0x110
[    4.210124]  bus_for_each_dev+0x77/0xc0
[    4.210125]  ? klist_add_tail+0x3b/0x70
[    4.210127]  bus_add_driver+0x164/0x220
[    4.210128]  ? 0xffffffffc0bbf000
[    4.210129]  driver_register+0x6b/0xc0
[    4.210130]  ? 0xffffffffc0bbf000
[    4.210131]  do_one_initcall+0x46/0x1d0
[    4.210133]  ? do_init_module+0x22/0x230
[    4.210135]  ? kmem_cache_alloc_trace+0x142/0x280
[    4.210138]  do_init_module+0x5a/0x230
[    4.210139]  load_module+0x14bf/0x17f0
[    4.210142]  ? __do_sys_init_module+0x13b/0x180
[    4.210143]  __do_sys_init_module+0x13b/0x180
[    4.210145]  do_syscall_64+0x5b/0x1b0
[    4.210146]  entry_SYSCALL_64_after_hwframe+0x61/0xc6