Q: Given the following code slice:
```
1 static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
2 {
3 	struct pci_dev *pdev = ae_dev->pdev;
4 	struct hclge_dev *hdev;
5 	int ret;
6 
7 	hdev = devm_kzalloc(&pdev->dev, sizeof(*hdev), GFP_KERNEL);
8 	if (!hdev)
9 		return -ENOMEM;
10 
11 	hdev->pdev = pdev;
12 	hdev->ae_dev = ae_dev;
13 	hdev->reset_type = HNAE3_NONE_RESET;
14 	hdev->reset_level = HNAE3_FUNC_RESET;
15 	ae_dev->priv = hdev;
16 
17 	/* HW supprt 2 layer vlan */
18 	hdev->mps = ETH_FRAME_LEN + ETH_FCS_LEN + 2 * VLAN_HLEN;
19 
20 	mutex_init(&hdev->vport_lock);
21 	spin_lock_init(&hdev->fd_rule_lock);
22 	sema_init(&hdev->reset_sem, 1);
23 
24 	ret = hclge_pci_init(hdev);
25 	if (ret)
26 		goto out;
27 
28 	ret = hclge_devlink_init(hdev);
29 	if (ret)
30 		goto err_pci_uninit;
31 
32 	devl_lock(hdev->devlink);
33 
34 	/* Firmware command queue initialize */
35 	ret = hclge_comm_cmd_queue_init(hdev->pdev, &hdev->hw.hw);
36 	if (ret)
37 		goto err_devlink_uninit;
38 
39 	/* Firmware command initialize */
40 	ret = hclge_comm_cmd_init(hdev->ae_dev, &hdev->hw.hw, &hdev->fw_version,
41 				  true, hdev->reset_pending);
42 	if (ret)
43 		goto err_cmd_uninit;
44 
45 	ret  = hclge_clear_hw_resource(hdev);
46 	if (ret)
47 		goto err_cmd_uninit;
48 
49 	ret = hclge_get_cap(hdev);
50 	if (ret)
51 		goto err_cmd_uninit;
52 
53 	ret = hclge_query_dev_specs(hdev);
54 	if (ret) {
55 		dev_err(&pdev->dev, "failed to query dev specifications, ret = %d.\n",
56 			ret);
57 		goto err_cmd_uninit;
58 	}
59 
60 	ret = hclge_configure(hdev);
61 	if (ret) {
62 		dev_err(&pdev->dev, "Configure dev error, ret = %d.\n", ret);
63 		goto err_cmd_uninit;
64 	}
65 
66 	ret = hclge_init_msi(hdev);
67 	if (ret) {
68 		dev_err(&pdev->dev, "Init MSI/MSI-X error, ret = %d.\n", ret);
69 		goto err_cmd_uninit;
70 	}
71 
72 	ret = hclge_misc_irq_init(hdev);
73 	if (ret)
74 		goto err_msi_uninit;
75 
76 	ret = hclge_alloc_tqps(hdev);
77 	if (ret) {
78 		dev_err(&pdev->dev, "Allocate TQPs error, ret = %d.\n", ret);
79 		goto err_msi_irq_uninit;
80 	}
81 
82 	ret = hclge_alloc_vport(hdev);
83 	if (ret)
84 		goto err_msi_irq_uninit;
85 
86 	ret = hclge_map_tqp(hdev);
87 	if (ret)
88 		goto err_msi_irq_uninit;
89 
90 	if (hdev->hw.mac.media_type == HNAE3_MEDIA_TYPE_COPPER) {
91 		clear_bit(HNAE3_DEV_SUPPORT_FEC_B, ae_dev->caps);
92 		if (hnae3_dev_phy_imp_supported(hdev))
93 			ret = hclge_update_tp_port_info(hdev);
94 		else
95 			ret = hclge_mac_mdio_config(hdev);
96 
97 		if (ret)
98 			goto err_msi_irq_uninit;
99 	}
100 
101 	ret = hclge_init_umv_space(hdev);
102 	if (ret)
103 		goto err_mdiobus_unreg;
104 
105 	ret = hclge_mac_init(hdev);
106 	if (ret) {
107 		dev_err(&pdev->dev, "Mac init error, ret = %d\n", ret);
108 		goto err_mdiobus_unreg;
109 	}
110 
111 	ret = hclge_config_tso(hdev, HCLGE_TSO_MSS_MIN, HCLGE_TSO_MSS_MAX);
112 	if (ret) {
113 		dev_err(&pdev->dev, "Enable tso fail, ret =%d\n", ret);
114 		goto err_mdiobus_unreg;
115 	}
116 
117 	ret = hclge_config_gro(hdev);
118 	if (ret)
119 		goto err_mdiobus_unreg;
120 
121 	ret = hclge_init_vlan_config(hdev);
122 	if (ret) {
123 		dev_err(&pdev->dev, "VLAN init fail, ret =%d\n", ret);
124 		goto err_mdiobus_unreg;
125 	}
126 
127 	ret = hclge_tm_schd_init(hdev);
128 	if (ret) {
129 		dev_err(&pdev->dev, "tm schd init fail, ret =%d\n", ret);
130 		goto err_mdiobus_unreg;
131 	}
132 
133 	ret = hclge_comm_rss_init_cfg(&hdev->vport->nic, hdev->ae_dev,
134 				      &hdev->rss_cfg);
135 	if (ret) {
136 		dev_err(&pdev->dev, "failed to init rss cfg, ret = %d\n", ret);
137 		goto err_mdiobus_unreg;
138 	}
139 
140 	ret = hclge_rss_init_hw(hdev);
141 	if (ret) {
142 		dev_err(&pdev->dev, "Rss init fail, ret =%d\n", ret);
143 		goto err_mdiobus_unreg;
144 	}
145 
146 	ret = init_mgr_tbl(hdev);
147 	if (ret) {
148 		dev_err(&pdev->dev, "manager table init fail, ret =%d\n", ret);
149 		goto err_mdiobus_unreg;
150 	}
151 
152 	ret = hclge_init_fd_config(hdev);
153 	if (ret) {
154 		dev_err(&pdev->dev,
155 			"fd table init fail, ret=%d\n", ret);
156 		goto err_mdiobus_unreg;
157 	}
158 
159 	ret = hclge_ptp_init(hdev);
160 	if (ret)
161 		goto err_mdiobus_unreg;
162 
163 	ret = hclge_update_port_info(hdev);
164 	if (ret)
165 		goto err_ptp_uninit;
166 
167 	INIT_KFIFO(hdev->mac_tnl_log);
168 
169 	hclge_dcb_ops_set(hdev);
170 
171 	timer_setup(&hdev->reset_timer, hclge_reset_timer, 0);
172 	INIT_DELAYED_WORK(&hdev->service_task, hclge_service_task);
173 
174 	hclge_clear_all_event_cause(hdev);
175 	hclge_clear_resetting_state(hdev);
176 
177 	/* Log and clear the hw errors those already occurred */
178 	if (hnae3_dev_ras_imp_supported(hdev))
179 		hclge_handle_occurred_error(hdev);
180 	else
181 		hclge_handle_all_hns_hw_errors(ae_dev);
182 
183 	/* request delayed reset for the error recovery because an immediate
184 	 * global reset on a PF affecting pending initialization of other PFs
185 	 */
186 	if (ae_dev->hw_err_reset_req) {
187 		enum hnae3_reset_type reset_level;
188 
189 		reset_level = hclge_get_reset_level(ae_dev,
190 						    &ae_dev->hw_err_reset_req);
191 		hclge_set_def_reset_request(ae_dev, reset_level);
192 		mod_timer(&hdev->reset_timer, jiffies + HCLGE_RESET_INTERVAL);
193 	}
194 
195 	hclge_init_rxd_adv_layout(hdev);
196 
197 	/* Enable MISC vector(vector0) */
198 	hclge_enable_vector(&hdev->misc_vector, true);
199 
200 	ret = hclge_init_wol(hdev);
201 	if (ret)
202 		dev_warn(&pdev->dev,
203 			 "failed to wake on lan init, ret = %d\n", ret);
204 
205 	hclge_state_init(hdev);
206 	hdev->last_reset_time = jiffies;
207 
208 	dev_info(&hdev->pdev->dev, "%s driver initialization finished.\n",
209 		 HCLGE_DRIVER_NAME);
210 
211 	hclge_task_schedule(hdev, round_jiffies_relative(HZ));
212 
213 	devl_unlock(hdev->devlink);
214 	return 0;
215 
216 err_ptp_uninit:
217 	hclge_ptp_uninit(hdev);
218 err_mdiobus_unreg:
219 	if (hdev->hw.mac.phydev)
220 		mdiobus_unregister(hdev->hw.mac.mdio_bus);
221 err_msi_irq_uninit:
222 	hclge_misc_irq_uninit(hdev);
223 err_msi_uninit:
224 	pci_free_irq_vectors(pdev);
225 err_cmd_uninit:
226 	hclge_comm_cmd_uninit(hdev->ae_dev, &hdev->hw.hw);
227 err_devlink_uninit:
228 	devl_unlock(hdev->devlink);
229 	hclge_devlink_uninit(hdev);
230 err_pci_uninit:
231 	pcim_iounmap(pdev, hdev->hw.hw.io_base);
232 	pci_release_regions(pdev);
233 	pci_disable_device(pdev);
234 out:
235 	mutex_destroy(&hdev->vport_lock);
236 	return ret;
237 }
```
which has a vulnerability among CWE-476 and among lines:
```
217 	hclge_ptp_uninit(hdev);
```
Please generate five possible patches for the vulnerability.