修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/drivers/media/usb/go7007/go7007-usb.c
..
..
@@ -1,14 +1,6 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  * Copyright (C) 2005-2006 Micronas USA Inc.
3
- *
4
- * This program is free software; you can redistribute it and/or modify
5
- * it under the terms of the GNU General Public License (Version 2) as
6
- * published by the Free Software Foundation.
7
- *
8
- * This program is distributed in the hope that it will be useful,
9
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
10
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11
- * GNU General Public License for more details.
12
4
  */
13
5
 
14
6
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
..
..
@@ -1133,12 +1125,16 @@
1133
1125
 	usb->usbdev = usbdev;
1134
1126
 	usb_make_path(usbdev, go->bus_info, sizeof(go->bus_info));
1135
1127
 	go->board_id = id->driver_info;
1136
-	strncpy(go->name, name, sizeof(go->name));
1128
+	strscpy(go->name, name, sizeof(go->name));
1137
1129
 	if (board->flags & GO7007_USB_EZUSB)
1138
1130
 		go->hpi_ops = &go7007_usb_ezusb_hpi_ops;
1139
1131
 	else
1140
1132
 		go->hpi_ops = &go7007_usb_onboard_hpi_ops;
1141
1133
 	go->hpi_context = usb;
1134
+
1135
+	ep = usb->usbdev->ep_in[4];
1136
+	if (!ep)
1137
+		goto allocfail;
1142
1138
 
1143
1139
 	/* Allocate the URB and buffer for receiving incoming interrupts */
1144
1140
 	usb->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
..
..
@@ -1149,7 +1145,6 @@
1149
1145
 	if (usb->intr_urb->transfer_buffer == NULL)
1150
1146
 		goto allocfail;
1151
1147
 
1152
-	ep = usb->usbdev->ep_in[4];
1153
1148
 	if (usb_endpoint_type(&ep->desc) == USB_ENDPOINT_XFER_BULK)
1154
1149
 		usb_fill_bulk_urb(usb->intr_urb, usb->usbdev,
1155
1150
 			usb_rcvbulkpipe(usb->usbdev, 4),
..
..
@@ -1200,7 +1195,7 @@
1200
1195
 				go->board_id = GO7007_BOARDID_ENDURA;
1201
1196
 				usb->board = board = &board_endura;
1202
1197
 				go->board_info = &board->main_info;
1203
-				strncpy(go->name, "Pelco Endura",
1198
+				strscpy(go->name, "Pelco Endura",
1204
1199
 					sizeof(go->name));
1205
1200
 			} else {
1206
1201
 				u16 channel;
..
..
@@ -1234,21 +1229,21 @@
1234
1229
 		case 1:
1235
1230
 			go->tuner_type = TUNER_SONY_BTF_PG472Z;
1236
1231
 			go->std = V4L2_STD_PAL;
1237
-			strncpy(go->name, "Plextor PX-TV402U-EU",
1238
-					sizeof(go->name));
1232
+			strscpy(go->name, "Plextor PX-TV402U-EU",
1233
+				sizeof(go->name));
1239
1234
 			break;
1240
1235
 		case 2:
1241
1236
 			go->tuner_type = TUNER_SONY_BTF_PK467Z;
1242
1237
 			go->std = V4L2_STD_NTSC_M_JP;
1243
1238
 			num_i2c_devs -= 2;
1244
-			strncpy(go->name, "Plextor PX-TV402U-JP",
1245
-					sizeof(go->name));
1239
+			strscpy(go->name, "Plextor PX-TV402U-JP",
1240
+				sizeof(go->name));
1246
1241
 			break;
1247
1242
 		case 3:
1248
1243
 			go->tuner_type = TUNER_SONY_BTF_PB463Z;
1249
1244
 			num_i2c_devs -= 2;
1250
-			strncpy(go->name, "Plextor PX-TV402U-NA",
1251
-					sizeof(go->name));
1245
+			strscpy(go->name, "Plextor PX-TV402U-NA",
1246
+				sizeof(go->name));
1252
1247
 			break;
1253
1248
 		default:
1254
1249
 			pr_debug("unable to detect tuner type!\n");
..
..
@@ -1271,9 +1266,13 @@
1271
1266
 
1272
1267
 	/* Allocate the URBs and buffers for receiving the video stream */
1273
1268
 	if (board->flags & GO7007_USB_EZUSB) {
1269
+		if (!usb->usbdev->ep_in[6])
1270
+			goto allocfail;
1274
1271
 		v_urb_len = 1024;
1275
1272
 		video_pipe = usb_rcvbulkpipe(usb->usbdev, 6);
1276
1273
 	} else {
1274
+		if (!usb->usbdev->ep_in[1])
1275
+			goto allocfail;
1277
1276
 		v_urb_len = 512;
1278
1277
 		video_pipe = usb_rcvbulkpipe(usb->usbdev, 1);
1279
1278
 	}
..
..
@@ -1293,6 +1292,8 @@
1293
1292
 	/* Allocate the URBs and buffers for receiving the audio stream */
1294
1293
 	if ((board->flags & GO7007_USB_EZUSB) &&
1295
1294
 	    (board->main_info.flags & GO7007_BOARD_HAS_AUDIO)) {
1295
+		if (!usb->usbdev->ep_in[8])
1296
+			goto allocfail;
1296
1297
 		for (i = 0; i < 8; ++i) {
1297
1298
 			usb->audio_urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
1298
1299
 			if (usb->audio_urbs[i] == NULL)