This is a note to let you know that I've just added the patch titled
USB: isp1362: fix memory leak with using debugfs_lookup()
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-isp1362-fix-memory-leak-with-using-debugfs_looku.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 649208fb4c56a9a76ac1817982f94492a0e96481
Author: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Date: Thu Feb 2 16:32:29 2023 +0100
USB: isp1362: fix memory leak with using debugfs_lookup()
[ Upstream commit c26e682afc14caa87d44beed271eec8991e93c65 ]
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: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230202153235.2412790-7-gregkh@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index d8610ce8f2ecd..bc68669dfc50c 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -2170,7 +2170,7 @@ static void create_debug_file(struct isp1362_hcd *isp1362_hcd)
static void remove_debug_file(struct isp1362_hcd *isp1362_hcd)
{
- debugfs_remove(debugfs_lookup("isp1362", usb_debug_root));
+ debugfs_lookup_and_remove("isp1362", usb_debug_root);
}
/*-------------------------------------------------------------------------*/
