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f2fs: do not unnecessarily null-terminate encrypted symlink data 

Null-terminating the fscrypt_symlink_data on read is unnecessary because
it is not string data --- it contains binary ciphertext.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Eric Biggers 2016-09-22 13:31:48 -07:00 committed by Jaegeuk Kim
parent d41065e204
commit ef68bf1197
1 changed files with 0 additions and 2 deletions
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fs/f2fs/namei.c
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@ -1015,7 +1015,6 @@ static const char *f2fs_encrypted_get_link(struct dentry *dentry,
struct fscrypt_str cstr = FSTR_INIT(NULL, 0);
struct fscrypt_str pstr = FSTR_INIT(NULL, 0);
struct fscrypt_symlink_data *sd;
loff_t size = min_t(loff_t, i_size_read(inode), PAGE_SIZE - 1);
u32 max_size = inode->i_sb->s_blocksize;
int res;
@ -1030,7 +1029,6 @@ static const char *f2fs_encrypted_get_link(struct dentry *dentry,
if (IS_ERR(cpage))
return ERR_CAST(cpage);
caddr = page_address(cpage);
caddr[size] = 0;
/* Symlink is encrypted */
sd = (struct fscrypt_symlink_data *)caddr;