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>
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@ -97,9 +97,6 @@ static int fname_decrypt(struct inode *inode,
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int res = 0;
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char iv[FS_CRYPTO_BLOCK_SIZE];
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if (iname->len <= 0)
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return -EIO;
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/* Allocate request */
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req = skcipher_request_alloc(tfm, GFP_NOFS);
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if (!req)
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