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()
References: bsc#1012628
Patch-mainline: 6.2.5
Git-commit: 8deb87b1e810dd558371e88ffd44339fbef27870
[ Upstream commit 8deb87b1e810dd558371e88ffd44339fbef27870 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/base/component.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/base/component.c b/drivers/base/component.c
index 5eadeac6..7dbf14a1 100644
--- a/drivers/base/component.c
+++ b/drivers/base/component.c
@@ -125,7 +125,7 @@ static void component_debugfs_add(struct aggregate_device *m)
static void component_debugfs_del(struct aggregate_device *m)
{
- debugfs_remove(debugfs_lookup(dev_name(m->parent), component_debugfs_dir));
+ debugfs_lookup_and_remove(dev_name(m->parent), component_debugfs_dir);
}
#else
--
2.35.3