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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/drivers/nfc/nxp-nci/core.c
..
..
@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
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3
  * Generic driver for NXP NCI NFC chips
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4
  *
..
..
@@ -7,25 +8,11 @@
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8
  *
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9
  * Derived from PN544 device driver:
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  * Copyright (C) 2012  Intel Corporation. All rights reserved.
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, see <http://www.gnu.org/licenses/>.
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11
  */
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12
 
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13
 #include <linux/delay.h>
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-#include <linux/gpio.h>
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14
 #include <linux/module.h>
27
15
 #include <linux/nfc.h>
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-#include <linux/platform_data/nxp-nci.h>
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16
 
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17
 #include <net/nfc/nci_core.h>
31
18
 
..
..
@@ -83,22 +70,20 @@
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70
 	struct nxp_nci_info *info = nci_get_drvdata(ndev);
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71
 	int r;
85
72
 
86
-	if (!info->phy_ops->write) {
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-		r = -ENOTSUPP;
88
-		goto send_exit;
89
-	}
73
+	if (!info->phy_ops->write)
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+		return -EOPNOTSUPP;
90
75
 
91
-	if (info->mode != NXP_NCI_MODE_NCI) {
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-		r = -EINVAL;
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-		goto send_exit;
94
-	}
76
+	if (info->mode != NXP_NCI_MODE_NCI)
77
+		return -EINVAL;
95
78
 
96
79
 	r = info->phy_ops->write(info->phy_id, skb);
97
-	if (r < 0)
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+	if (r < 0) {
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81
 		kfree_skb(skb);
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+		return r;
83
+	}
99
84
 
100
-send_exit:
101
-	return r;
85
+	consume_skb(skb);
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+	return 0;
102
87
 }
103
88
 
104
89
 static struct nci_ops nxp_nci_ops = {
..
..
@@ -117,10 +102,8 @@
117
102
 	int r;
118
103
 
119
104
 	info = devm_kzalloc(pdev, sizeof(struct nxp_nci_info), GFP_KERNEL);
120
-	if (!info) {
121
-		r = -ENOMEM;
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-		goto probe_exit;
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-	}
105
+	if (!info)
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+		return -ENOMEM;
124
107
 
125
108
 	info->phy_id = phy_id;
126
109
 	info->pdev = pdev;
..
..
@@ -133,31 +116,25 @@
133
116
 	if (info->phy_ops->set_mode) {
134
117
 		r = info->phy_ops->set_mode(info->phy_id, NXP_NCI_MODE_COLD);
135
118
 		if (r < 0)
136
-			goto probe_exit;
119
+			return r;
137
120
 	}
138
121
 
139
122
 	info->mode = NXP_NCI_MODE_COLD;
140
123
 
141
124
 	info->ndev = nci_allocate_device(&nxp_nci_ops, NXP_NCI_NFC_PROTOCOLS,
142
125
 					 NXP_NCI_HDR_LEN, 0);
143
-	if (!info->ndev) {
144
-		r = -ENOMEM;
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-		goto probe_exit;
146
-	}
126
+	if (!info->ndev)
127
+		return -ENOMEM;
147
128
 
148
129
 	nci_set_parent_dev(info->ndev, pdev);
149
130
 	nci_set_drvdata(info->ndev, info);
150
131
 	r = nci_register_device(info->ndev);
151
-	if (r < 0)
152
-		goto probe_exit_free_nci;
132
+	if (r < 0) {
133
+		nci_free_device(info->ndev);
134
+		return r;
135
+	}
153
136
 
154
137
 	*ndev = info->ndev;
155
-
156
-	goto probe_exit;
157
-
158
-probe_exit_free_nci:
159
-	nci_free_device(info->ndev);
160
-probe_exit:
161
138
 	return r;
162
139
 }
163
140
 EXPORT_SYMBOL(nxp_nci_probe);