tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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drivers: base: dd: fix memory leak with using debugfs_lookup()

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: "Rafael J. Wysocki" <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230202141621.2296458-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Greg Kroah-Hartman 36c893d3 8deb87b1

+1 -1
+1 -1
drivers/base/dd.c
··· 370 370 371 371 static void __exit deferred_probe_exit(void) 372 372 { 373 - debugfs_remove_recursive(debugfs_lookup("devices_deferred", NULL)); 373 + debugfs_lookup_and_remove("devices_deferred", NULL); 374 374 } 375 375 __exitcall(deferred_probe_exit); 376 376