[for-next][PATCH 02/12] eventfs: Remove extra dget() in eventfs_create_events_dir()

[Steven Rostedt]

From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx>

The creation of the top events directory does a dget() at the end of the
creation in eventfs_create_events_dir() with a comment saying the final
dput() will happen when it is removed. The problem is that a dget() is
already done on the dentry when it was created with tracefs_start_creating()!
The dget() now just causes a memory leak of that dentry.

Remove the extra dget() as the final dput() in the deletion of the events
directory actually matches the one in tracefs_start_creating().

Link: https://lore.kernel.org/linux-trace-kernel/20231031124229.4f2e3fa1@xxxxxxxxxxxxxxxxxx

Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Fixes: 5790b1fb3d672 ("eventfs: Remove eventfs_file and just use eventfs_inode")
Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
---
 fs/tracefs/event_inode.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/tracefs/event_inode.c b/fs/tracefs/event_inode.c
index 4d2da7480e5f..5536860eb2ff 100644
--- a/fs/tracefs/event_inode.c
+++ b/fs/tracefs/event_inode.c
@@ -774,9 +774,6 @@ struct eventfs_inode *eventfs_create_events_dir(const char *name, struct dentry
 	fsnotify_mkdir(dentry->d_parent->d_inode, dentry);
 	tracefs_end_creating(dentry);
 
-	/* Will call dput when the directory is removed */
-	dget(dentry);
-
 	return ei;
 
  fail:
-- 
2.42.0