Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 10/13] USB: gadget: lpc32xx_udc: fix memory leak with using debugfs_lookup() | Date | Thu, 2 Feb 2023 16:32:32 +0100 |
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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: Vladimir Zapolskiy <vz@mleia.com> Cc: Jakob Koschel <jakobkoschel@gmail.com> Cc: Miaoqian Lin <linmq006@gmail.com> Cc: linux-usb@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/usb/gadget/udc/lpc32xx_udc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c index cea10cdb83ae..fe62db32dd0e 100644 --- a/drivers/usb/gadget/udc/lpc32xx_udc.c +++ b/drivers/usb/gadget/udc/lpc32xx_udc.c @@ -532,7 +532,7 @@ static void create_debug_file(struct lpc32xx_udc *udc) static void remove_debug_file(struct lpc32xx_udc *udc) { - debugfs_remove(debugfs_lookup(debug_filename, NULL)); + debugfs_lookup_and_remove(debug_filename, NULL); } #else -- 2.39.1
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