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USB: gadget: gr_udc: fix memory leak with using debugfs_lookup()

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[ Upstream commit 73f4451368 ]

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: Jakob Koschel <jakobkoschel@gmail.com>
Link: https://lore.kernel.org/r/20230202153235.2412790-8-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 16:32:30 +01:00
parent fb284bee1e
commit 30f9ba2396
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/gadget/udc/gr_udc.c
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@@ -215,7 +215,7 @@ static void gr_dfs_create(struct gr_udc *dev)
static void gr_dfs_delete(struct gr_udc *dev)
{
debugfs_remove(debugfs_lookup(dev_name(dev->dev), usb_debug_root));
debugfs_lookup_and_remove(dev_name(dev->dev), usb_debug_root);
}
#else /* !CONFIG_USB_GADGET_DEBUG_FS */