From ef1eb3aa50930f026135085cd160b1212cdfe817 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Thu, 15 Sep 2016 17:25:55 -0400 Subject: fscrypto: make filename crypto functions return 0 on success Several filename crypto functions: fname_decrypt(), fscrypt_fname_disk_to_usr(), and fscrypt_fname_usr_to_disk(), returned the output length on success or -errno on failure. However, the output length was redundant with the value written to 'oname->len'. It is also potentially error-prone to make callers have to check for '< 0' instead of '!= 0'. Therefore, make these functions return 0 instead of a length, and make the callers who cared about the return value being a length use 'oname->len' instead. For consistency also make other callers check for a nonzero result rather than a negative result. This change also fixes the inconsistency of fname_encrypt() actually already returning 0 on success, not a length like the other filename crypto functions and as documented in its function comment. Signed-off-by: Eric Biggers Signed-off-by: Theodore Ts'o Reviewed-by: Andreas Dilger Acked-by: Jaegeuk Kim --- fs/f2fs/dir.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'fs/f2fs/dir.c') diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 9054aeac8015..8716943335b1 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -786,7 +786,7 @@ bool f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, if (f2fs_encrypted_inode(d->inode)) { int save_len = fstr->len; - int ret; + int err; de_name.name = f2fs_kmalloc(de_name.len, GFP_NOFS); if (!de_name.name) @@ -794,11 +794,11 @@ bool f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, memcpy(de_name.name, d->filename[bit_pos], de_name.len); - ret = fscrypt_fname_disk_to_usr(d->inode, + err = fscrypt_fname_disk_to_usr(d->inode, (u32)de->hash_code, 0, &de_name, fstr); kfree(de_name.name); - if (ret < 0) + if (err) return true; de_name = *fstr; -- cgit v1.2.3