From: Greg Kroah-Hartman gregkh@linuxfoundation.org
[ Upstream commit 30374434edab20e25776f8ecb4bc9d1e54309487 ]
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: Alan Stern stern@rowland.harvard.edu Cc: Jilin Yuan yuanjilin@cdjrlc.com Link: https://lore.kernel.org/r/20230106152828.3790902-1-gregkh@linuxfoundation.or... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/core/usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 62368c4ed37af..cc36f9f228148 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -1036,7 +1036,7 @@ static void usb_debugfs_init(void)
static void usb_debugfs_cleanup(void) { - debugfs_remove(debugfs_lookup("devices", usb_debug_root)); + debugfs_lookup_and_remove("devices", usb_debug_root); }
/*