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846d2db3e0
If check_cached_key() returns a non-NULL value, we still need to call key_type::match_free() to undo key_type::match_preparse(). Fixes: 7743c48e54ee ("keys: Cache result of request_key*() temporarily in task_struct") Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>