iwlwifi: mvm: Don't request HW restart if already requested

In case mac80211 was requested to perform an HW restart, but the HW
restart has not started yet, there is no need to request another one.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/ops.c

@@ -1320,6 +1320,9 @@ void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
 		reprobe->dev = mvm->trans->dev;
 		INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
 		schedule_work(&reprobe->work);
+	} else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
+			    &mvm->status)) {
+		IWL_ERR(mvm, "HW restart already requested, but not started\n");
 	} else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR &&
 		   mvm->hw_registered &&
 		   !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {