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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/drivers/net/wireless/broadcom/b43legacy/debugfs.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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   Broadcom B43legacy wireless driver
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@@ -6,20 +7,6 @@
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   Copyright (c) 2005-2007 Michael Buesch <m@bues.ch>
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-  This program is free software; you can redistribute it and/or modify
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-  it under the terms of the GNU General Public License as published by
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-  the Free Software Foundation; either version 2 of the License, or
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-  (at your option) any later version.
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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; see the file COPYING.  If not, write to
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-  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
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-  Boston, MA 02110-1301, USA.
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 */
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@@ -67,7 +54,7 @@
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 #define fappend(fmt, x...)	\
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 	do {							\
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 		if (bufsize - count)				\
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-			count += snprintf(buf + count,		\
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+			count += scnprintf(buf + count,		\
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 					  bufsize - count,	\
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 					  fmt , ##x);		\
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 		else						\
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@@ -203,7 +190,7 @@
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 	struct b43legacy_wldev *dev;
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 	struct b43legacy_debugfs_fops *dfops;
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 	struct b43legacy_dfs_file *dfile;
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-	ssize_t uninitialized_var(ret);
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+	ssize_t ret;
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 	char *buf;
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 	const size_t bufsize = 1024 * 16; /* 16 KiB buffer */
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 	const size_t buforder = get_order(bufsize);
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@@ -361,15 +348,13 @@
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 static void b43legacy_add_dynamic_debug(struct b43legacy_wldev *dev)
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 {
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 	struct b43legacy_dfsentry *e = dev->dfsentry;
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-	struct dentry *d;
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-#define add_dyn_dbg(name, id, initstate) do {		\
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-	e->dyn_debug[id] = (initstate);			\
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-	d = debugfs_create_bool(name, 0600, e->subdir,	\
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-				&(e->dyn_debug[id]));	\
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-	if (!IS_ERR(d))					\
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-		e->dyn_debug_dentries[id] = d;		\
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-				} while (0)
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+#define add_dyn_dbg(name, id, initstate) do {			\
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+	e->dyn_debug[id] = (initstate);				\
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+	e->dyn_debug_dentries[id] =				\
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+		debugfs_create_bool(name, 0600, e->subdir,	\
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+				&(e->dyn_debug[id]));		\
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+	} while (0)
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 	add_dyn_dbg("debug_xmitpower", B43legacy_DBG_XMITPOWER, false);
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 	add_dyn_dbg("debug_dmaoverflow", B43legacy_DBG_DMAOVERFLOW, false);
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@@ -408,29 +393,14 @@
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 	snprintf(devdir, sizeof(devdir), "%s", wiphy_name(dev->wl->hw->wiphy));
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 	e->subdir = debugfs_create_dir(devdir, rootdir);
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-	if (!e->subdir || IS_ERR(e->subdir)) {
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-		if (e->subdir == ERR_PTR(-ENODEV)) {
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-			b43legacydbg(dev->wl, "DebugFS (CONFIG_DEBUG_FS) not "
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-			       "enabled in kernel config\n");
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-		} else {
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-			b43legacyerr(dev->wl, "debugfs: cannot create %s directory\n",
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-			       devdir);
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-		}
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-		dev->dfsentry = NULL;
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-		kfree(log->log);
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-		kfree(e);
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-		return;
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-	}
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 #define ADD_FILE(name, mode)	\
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 	do {							\
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-		struct dentry *d;				\
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-		d = debugfs_create_file(__stringify(name),	\
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+		e->file_##name.dentry =				\
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+			debugfs_create_file(__stringify(name),	\
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 					mode, e->subdir, dev,	\
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 					&fops_##name.fops);	\
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 		e->file_##name.dentry = NULL;			\
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-		if (!IS_ERR(d))					\
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-			e->file_##name.dentry = d;		\
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 	} while (0)
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@@ -492,8 +462,6 @@
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 void b43legacy_debugfs_init(void)
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 {
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 	rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
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-	if (IS_ERR(rootdir))
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-		rootdir = NULL;
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 }
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 void b43legacy_debugfs_exit(void)