Backtrace

WARNING: CPU: 6 PID: 1 at drivers/char/tpm/tpm_tis_core.c:249 tpm_tis_status+0x66/0x70
Modules linked in:
CPU: 6 PID: 1 Comm: swapper/0 Not tainted 5.10.7-200.fc33.x86_64 #1
Hardware name: Dell Inc. XPS 15 9500/05XYW7, BIOS 1.4.0 08/14/2020
RIP: 0010:tpm_tis_status+0x66/0x70
Code: 23 75 05 48 83 c4 10 c3 31 c0 80 3d 00 eb 56 01 00 75 f0 48 c7 c7 b4 31 43 8e 88 44 24 07 c6 05 ec ea 56 01 01 e8 c7 ee 3b 00 <0f> 0b 0f b6 44 24 07 eb d0 90 0f 1f 44 00 00 41 57 41 56 41 55 41
RSP: 0000:ffffb058000579b8 EFLAGS: 00010296
RAX: 000000000000001b RBX: ffff93418862d000 RCX: ffffffff8eb14708
RDX: c0000000ffffdfff RSI: 00000000ffffdfff RDI: 0000000000000247
RBP: ffff93418862d000 R08: 0000000000000000 R09: ffffb058000577e8
R10: ffffb058000577e0 R11: ffffffff8eb44748 R12: ffff9341887306e8
R13: ffff934188732000 R14: 0000000000000000 R15: ffffb05800057a72
FS:  0000000000000000(0000) GS:ffff9348ed580000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000005e3a10001 CR4: 00000000007706e0
PKRU: 55555554
Call Trace:
 tpm_tis_send_data+0x2b/0x230
 tpm_tis_send_main+0x1e/0xe0
 tpm_transmit+0xd8/0x3d0
 tpm_transmit_cmd+0x25/0x90
 tpm2_get_random+0xd7/0x1d0
 ? tpm_chip_start+0x6a/0xb0
 tpm_get_random+0x5b/0x70
 add_early_randomness+0x49/0xb0
 hwrng_register+0x164/0x1c0
 tpm_chip_register+0xcb/0x260
 tpm_tis_core_init.cold+0x202/0x3ff
 tpm_tis_plat_probe+0xca/0xe0
 platform_drv_probe+0x35/0x80
 really_probe+0x358/0x460
 driver_probe_device+0xe1/0x150
 device_driver_attach+0xa1/0xb0
 __driver_attach+0x8a/0x150
 ? device_driver_attach+0xb0/0xb0
 ? device_driver_attach+0xb0/0xb0
 bus_for_each_dev+0x64/0x90
 bus_add_driver+0x12b/0x1e0
 driver_register+0x8b/0xe0
 ? tpm_init+0xf1/0xf1
 init_tis+0x7a/0xbb
 ? driver_register+0xbe/0xe0
 do_one_initcall+0x44/0x1d0
 kernel_init_freeable+0x1ca/0x211
 ? rest_init+0xb4/0xb4
 kernel_init+0xa/0x10c
 ret_from_fork+0x1f/0x30