From 8deb87b1e810dd558371e88ffd44339fbef27870 Mon Sep 17 00:00:00 2001

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Date: Thu, 2 Feb 2023 15:16:20 +0100

Subject: [PATCH] drivers: base: component: fix memory leak with using debugfs_lookup()

Git-commit: 8deb87b1e810dd558371e88ffd44339fbef27870

Patch-mainline: v6.3-rc1

References: git-fixes

When calling debugfs_lookup() the result must have dput() called on it,

otherwise the memory will leak over time.  To make things simpler, just

call debugfs_lookup_and_remove() instead which handles all of the logic

at once.

Cc: "Rafael J. Wysocki" <rafael@kernel.org>

Link: https://lore.kernel.org/r/20230202141621.2296458-1-gregkh@linuxfoundation.org

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Acked-by: Takashi Iwai <tiwai@suse.de>

---

 drivers/base/component.c |    2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/base/component.c

+++ b/drivers/base/component.c

@@ -130,7 +130,7 @@ static void component_master_debugfs_add

 static void component_master_debugfs_del(struct master *m)

 {

-	debugfs_remove(debugfs_lookup(dev_name(m->parent), component_debugfs_dir));

+	debugfs_lookup_and_remove(dev_name(m->parent), component_debugfs_dir);

 }

 #else