wifi: iwlwifi: mvm: pause TCM when the firmware is stopped

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: mvm: pause TCM when the firmware is stopped

Not doing so will make us send a host command to the transport while the

firmware is not alive, which will trigger a WARNING.

bad state = 0

WARNING: CPU: 2 PID: 17434 at drivers/net/wireless/intel/iwlwifi/iwl-trans.c:115 iwl_trans_send_cmd+0x1cb/0x1e0 [iwlwifi]

RIP: 0010:iwl_trans_send_cmd+0x1cb/0x1e0 [iwlwifi]

Call Trace:

<TASK>

iwl_mvm_send_cmd+0x40/0xc0 [iwlmvm]

iwl_mvm_config_scan+0x198/0x260 [iwlmvm]

iwl_mvm_recalc_tcm+0x730/0x11d0 [iwlmvm]

iwl_mvm_tcm_work+0x1d/0x30 [iwlmvm]

process_one_work+0x29e/0x640

worker_thread+0x2df/0x690

? rescuer_thread+0x540/0x540

kthread+0x192/0x1e0

? set_kthread_struct+0x90/0x90

ret_from_fork+0x22/0x30