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USB: gadget: pxa25x_udc: fix memory leak with using debugfs_lookup()

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[ Upstream commit 7a038a681b ]

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: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Link: https://lore.kernel.org/r/20230202153235.2412790-11-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 16:32:33 +01:00
parent 036ada6ca9
commit 6236a6d2cd
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/gadget/udc/pxa25x_udc.c
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@@ -1341,7 +1341,7 @@ DEFINE_SHOW_ATTRIBUTE(udc_debug);
debugfs_create_file(dev->gadget.name, \
S_IRUGO, NULL, dev, &udc_debug_fops); \
} while (0)
#define remove_debug_files(dev) debugfs_remove(debugfs_lookup(dev->gadget.name, NULL))
#define remove_debug_files(dev) debugfs_lookup_and_remove(dev->gadget.name, NULL)
#else /* !CONFIG_USB_GADGET_DEBUG_FILES */