fscrypt: drop empty name check from fname_decrypt()
authorEric Biggers <ebiggers@google.com>
Mon, 30 Apr 2018 22:51:43 +0000 (15:51 -0700)
committerTheodore Ts'o <tytso@mit.edu>
Sun, 20 May 2018 20:21:03 +0000 (16:21 -0400)
commit0c4cdb27caa40167a7369a986afcde3d1d913b06
tree8f7747e41b02a9046b6461b57f8165b0714131d3
parent54632f02d0cc4e47e20d0d742bf162021801fa9a
fscrypt: drop empty name check from fname_decrypt()

fname_decrypt() is validating that the encrypted filename is nonempty.
However, earlier a stronger precondition was already enforced: the
encrypted filename must be at least 16 (FS_CRYPTO_BLOCK_SIZE) bytes.

Drop the redundant check for an empty filename.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
fs/crypto/fname.c