Merge tag 'for-linus-6.2-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux

Pull orangefs updates from Mike Marshall:

 - fix problems with memory leaks on exit in sysfs and debufs (Zhang)

 - remove an unused variable and an unneeded assignment (Colin)

* tag 'for-linus-6.2-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
  orangefs: Fix kmemleak in orangefs_{kernel,client}_debug_init()
  orangefs: Fix kmemleak in orangefs_sysfs_init()
  orangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string()
  orangefs: Fix sysfs not cleanup when dev init failed
  orangefs: remove redundant assignment to variable buffer_index
  orangefs: remove variable i

1 files changed, 6 insertions, 23 deletions

diff --git a/fs/orangefs/orangefs-debugfs.c b/fs/orangefs/orangefs-debugfs.c
index 29eaa4544372..1b508f543384 100644
--- a/fs/orangefs/orangefs-debugfs.c
+++ b/fs/orangefs/orangefs-debugfs.c
@@ -194,15 +194,10 @@ void orangefs_debugfs_init(int debug_mask)
  */
 static void orangefs_kernel_debug_init(void)
 {
-	int rc = -ENOMEM;
-	char *k_buffer = NULL;
+	static char k_buffer[ORANGEFS_MAX_DEBUG_STRING_LEN] = { };
 
 	gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: start\n", __func__);
 
-	k_buffer = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
-	if (!k_buffer)
-		goto out;
-
 	if (strlen(kernel_debug_string) + 1 < ORANGEFS_MAX_DEBUG_STRING_LEN) {
 		strcpy(k_buffer, kernel_debug_string);
 		strcat(k_buffer, "\n");
@@ -213,15 +208,14 @@ static void orangefs_kernel_debug_init(void)
 
 	debugfs_create_file(ORANGEFS_KMOD_DEBUG_FILE, 0444, debug_dir, k_buffer,
 			    &kernel_debug_fops);
-
-out:
-	gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: rc:%d:\n", __func__, rc);
 }
 
 
 void orangefs_debugfs_cleanup(void)
 {
 	debugfs_remove_recursive(debug_dir);
+	kfree(debug_help_string);
+	debug_help_string = NULL;
 }
 
 /* open ORANGEFS_KMOD_DEBUG_HELP_FILE */
@@ -297,18 +291,13 @@ static int help_show(struct seq_file *m, void *v)
 /*
  * initialize the client-debug file.
  */
-static int orangefs_client_debug_init(void)
+static void orangefs_client_debug_init(void)
 {
 
-	int rc = -ENOMEM;
-	char *c_buffer = NULL;
+	static char c_buffer[ORANGEFS_MAX_DEBUG_STRING_LEN] = { };
 
 	gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: start\n", __func__);
 
-	c_buffer = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);
-	if (!c_buffer)
-		goto out;
-
 	if (strlen(client_debug_string) + 1 < ORANGEFS_MAX_DEBUG_STRING_LEN) {
 		strcpy(c_buffer, client_debug_string);
 		strcat(c_buffer, "\n");
@@ -322,13 +311,6 @@ static int orangefs_client_debug_init(void)
 						  debug_dir,
 						  c_buffer,
 						  &kernel_debug_fops);
-
-	rc = 0;
-
-out:
-
-	gossip_debug(GOSSIP_DEBUGFS_DEBUG, "%s: rc:%d:\n", __func__, rc);
-	return rc;
 }
 
 /* open ORANGEFS_KMOD_DEBUG_FILE or ORANGEFS_CLIENT_DEBUG_FILE.*/
@@ -671,6 +653,7 @@ int orangefs_prepare_debugfs_help_string(int at_boot)
 		memset(debug_help_string, 0, DEBUG_HELP_STRING_SIZE);
 		strlcat(debug_help_string, new, string_size);
 		mutex_unlock(&orangefs_help_file_lock);
+		kfree(new);
 	}
 
 	rc = 0;