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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/net/wireless/ti/wl1251/debugfs.c
..
..
@@ -1,22 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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2
 /*
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  * This file is part of wl1251
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  *
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  * Copyright (C) 2009 Nokia Corporation
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms 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, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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- * 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, write to the Free Software
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- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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- * 02110-1301 USA
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- *
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6
  */
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7
 
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8
 #include "debugfs.h"
..
..
@@ -54,11 +40,6 @@
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 #define DEBUGFS_ADD(name, parent)					\
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 	wl->debugfs.name = debugfs_create_file(#name, 0400, parent,	\
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 					       wl, &name## _ops);	\
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-	if (IS_ERR(wl->debugfs.name)) {					\
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-		ret = PTR_ERR(wl->debugfs.name);			\
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-		wl->debugfs.name = NULL;				\
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-		goto out;						\
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-	}
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43
 
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 #define DEBUGFS_DEL(name)						\
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45
 	do {								\
..
..
@@ -354,10 +335,8 @@
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 	DEBUGFS_DEL(excessive_retries);
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336
 }
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337
 
357
-static int wl1251_debugfs_add_files(struct wl1251 *wl)
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+static void wl1251_debugfs_add_files(struct wl1251 *wl)
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339
 {
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-	int ret = 0;
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-
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340
 	DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
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341
 
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 	DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
..
..
@@ -453,12 +432,6 @@
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 	DEBUGFS_ADD(tx_queue_status, wl->debugfs.rootdir);
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433
 	DEBUGFS_ADD(retry_count, wl->debugfs.rootdir);
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 	DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir);
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-
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-out:
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-	if (ret < 0)
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-		wl1251_debugfs_delete_files(wl);
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-
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-	return ret;
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435
 }
463
436
 
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 void wl1251_debugfs_reset(struct wl1251 *wl)
..
..
@@ -471,56 +444,20 @@
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444
 
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 int wl1251_debugfs_init(struct wl1251 *wl)
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 {
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-	int ret;
447
+	wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats), GFP_KERNEL);
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+	if (!wl->stats.fw_stats)
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+		return -ENOMEM;
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450
 
476
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 	wl->debugfs.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
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-
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-	if (IS_ERR(wl->debugfs.rootdir)) {
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-		ret = PTR_ERR(wl->debugfs.rootdir);
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-		wl->debugfs.rootdir = NULL;
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-		goto err;
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-	}
483
452
 
484
453
 	wl->debugfs.fw_statistics = debugfs_create_dir("fw-statistics",
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454
 						       wl->debugfs.rootdir);
486
455
 
487
-	if (IS_ERR(wl->debugfs.fw_statistics)) {
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-		ret = PTR_ERR(wl->debugfs.fw_statistics);
489
-		wl->debugfs.fw_statistics = NULL;
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-		goto err_root;
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-	}
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-
493
-	wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
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-				      GFP_KERNEL);
495
-
496
-	if (!wl->stats.fw_stats) {
497
-		ret = -ENOMEM;
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-		goto err_fw;
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-	}
500
-
501
456
 	wl->stats.fw_stats_update = jiffies;
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457
 
503
-	ret = wl1251_debugfs_add_files(wl);
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-
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-	if (ret < 0)
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-		goto err_file;
458
+	wl1251_debugfs_add_files(wl);
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459
 
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 	return 0;
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-
510
-err_file:
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-	kfree(wl->stats.fw_stats);
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-	wl->stats.fw_stats = NULL;
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-
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-err_fw:
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-	debugfs_remove(wl->debugfs.fw_statistics);
516
-	wl->debugfs.fw_statistics = NULL;
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-
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-err_root:
519
-	debugfs_remove(wl->debugfs.rootdir);
520
-	wl->debugfs.rootdir = NULL;
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-
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-err:
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-	return ret;
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461
 }
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462
 
526
463
 void wl1251_debugfs_exit(struct wl1251 *wl)