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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/net/wimax/i2400m/usb.c
....@@ -1,26 +1,11 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Intel Wireless WiMAX Connection 2400m
34  * Linux driver model glue for USB device, reset & fw upload
45  *
5
- *
66  * Copyright (C) 2007-2008 Intel Corporation <linux-wimax@intel.com>
77  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
88  * Yanir Lubetkin <yanirx.lubetkin@intel.com>
9
- *
10
- * This program is free software; you can redistribute it and/or
11
- * modify it under the terms of the GNU General Public License version
12
- * 2 as published by the Free Software Foundation.
13
- *
14
- * This program is distributed in the hope that it will be useful,
15
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
16
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
- * GNU General Public License for more details.
18
- *
19
- * You should have received a copy of the GNU General Public License
20
- * along with this program; if not, write to the Free Software
21
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22
- * 02110-1301, USA.
23
- *
249  *
2510  * See i2400m-usb.h for a general description of this driver.
2611  *
....@@ -210,6 +195,7 @@
210195 			msleep(10);	/* give the device some time */
211196 			goto retry;
212197 		}
198
+		fallthrough;
213199 	case -EINVAL:			/* while removing driver */
214200 	case -ENODEV:			/* dev disconnect ... */
215201 	case -ENOENT:			/* just ignore it */
....@@ -380,61 +366,25 @@
380366 };
381367 size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
382368 
383
-
384
-#define __debugfs_register(prefix, name, parent)			\
385
-do {									\
386
-	result = d_level_register_debugfs(prefix, name, parent);	\
387
-	if (result < 0)							\
388
-		goto error;						\
389
-} while (0)
390
-
391
-
392369 static
393
-int i2400mu_debugfs_add(struct i2400mu *i2400mu)
370
+void i2400mu_debugfs_add(struct i2400mu *i2400mu)
394371 {
395
-	int result;
396
-	struct device *dev = &i2400mu->usb_iface->dev;
397372 	struct dentry *dentry = i2400mu->i2400m.wimax_dev.debugfs_dentry;
398
-	struct dentry *fd;
399373 
400374 	dentry = debugfs_create_dir("i2400m-usb", dentry);
401
-	result = PTR_ERR(dentry);
402
-	if (IS_ERR(dentry)) {
403
-		if (result == -ENODEV)
404
-			result = 0;	/* No debugfs support */
405
-		goto error;
406
-	}
407375 	i2400mu->debugfs_dentry = dentry;
408
-	__debugfs_register("dl_", usb, dentry);
409
-	__debugfs_register("dl_", fw, dentry);
410
-	__debugfs_register("dl_", notif, dentry);
411
-	__debugfs_register("dl_", rx, dentry);
412
-	__debugfs_register("dl_", tx, dentry);
376
+
377
+	d_level_register_debugfs("dl_", usb, dentry);
378
+	d_level_register_debugfs("dl_", fw, dentry);
379
+	d_level_register_debugfs("dl_", notif, dentry);
380
+	d_level_register_debugfs("dl_", rx, dentry);
381
+	d_level_register_debugfs("dl_", tx, dentry);
413382 
414383 	/* Don't touch these if you don't know what you are doing */
415
-	fd = debugfs_create_u8("rx_size_auto_shrink", 0600, dentry,
416
-			       &i2400mu->rx_size_auto_shrink);
417
-	result = PTR_ERR(fd);
418
-	if (IS_ERR(fd) && result != -ENODEV) {
419
-		dev_err(dev, "Can't create debugfs entry "
420
-			"rx_size_auto_shrink: %d\n", result);
421
-		goto error;
422
-	}
384
+	debugfs_create_u8("rx_size_auto_shrink", 0600, dentry,
385
+			  &i2400mu->rx_size_auto_shrink);
423386 
424
-	fd = debugfs_create_size_t("rx_size", 0600, dentry,
425
-				   &i2400mu->rx_size);
426
-	result = PTR_ERR(fd);
427
-	if (IS_ERR(fd) && result != -ENODEV) {
428
-		dev_err(dev, "Can't create debugfs entry "
429
-			"rx_size: %d\n", result);
430
-		goto error;
431
-	}
432
-
433
-	return 0;
434
-
435
-error:
436
-	debugfs_remove_recursive(i2400mu->debugfs_dentry);
437
-	return result;
387
+	debugfs_create_size_t("rx_size", 0600, dentry, &i2400mu->rx_size);
438388 }
439389 
440390 
....@@ -548,15 +498,9 @@
548498 		dev_err(dev, "cannot setup device: %d\n", result);
549499 		goto error_setup;
550500 	}
551
-	result = i2400mu_debugfs_add(i2400mu);
552
-	if (result < 0) {
553
-		dev_err(dev, "Can't register i2400mu's debugfs: %d\n", result);
554
-		goto error_debugfs_add;
555
-	}
501
+	i2400mu_debugfs_add(i2400mu);
556502 	return 0;
557503 
558
-error_debugfs_add:
559
-	i2400m_release(i2400m);
560504 error_setup:
561505 	usb_set_intfdata(iface, NULL);
562506 	usb_put_dev(i2400mu->usb_dev);
....@@ -567,7 +511,7 @@
567511 
568512 
569513 /*
570
- * Disconect a i2400m from the system.
514
+ * Disconnect a i2400m from the system.
571515  *
572516  * i2400m_stop() has been called before, so al the rx and tx contexts
573517  * have been taken down already. Make sure the queue is stopped,