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USB: sl811: fix memory leak with using debugfs_lookup()

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[ Upstream commit e1523c4dbc ]

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@wanadoo.fr>
Link: https://lore.kernel.org/r/20230202153235.2412790-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Greg Kroah-Hartman
2023-02-02 16:32:26 +01:00
parent e529aeb771
commit 54166af894
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/sl811-hcd.c
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@@ -1501,7 +1501,7 @@ static void create_debug_file(struct sl811 *sl811)
static void remove_debug_file(struct sl811 *sl811)
{
debugfs_remove(debugfs_lookup("sl811h", usb_debug_root));
debugfs_lookup_and_remove("sl811h", usb_debug_root);
}
/*-------------------------------------------------------------------------*/