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f2fs crypto: clean up error handling in f2fs_fname_setup_filename 

Sync with:
  ext4 crypto: clean up error handling in ext4_fname_setup_filename

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2015-05-28 17:06:40 -07:00
parent e992e238ff
commit e5e0906b6b
1 changed files with 10 additions and 14 deletions
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24
fs/f2fs/crypto_fname.c
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@ -392,15 +392,13 @@ int f2fs_fname_setup_filename(struct inode *dir, const struct qstr *iname,
return ret;
ret = f2fs_fname_encrypt(dir, iname, &fname->crypto_buf);
if (ret < 0)
goto out;
goto errout;
fname->disk_name.name = fname->crypto_buf.name;
fname->disk_name.len = fname->crypto_buf.len;
return 0;
}
if (!lookup) {
ret = -EACCES;
goto out;
}
if (!lookup)
return -EACCES;
/* We don't have the key and we are doing a lookup; decode the
* user-supplied name
@ -408,19 +406,17 @@ int f2fs_fname_setup_filename(struct inode *dir, const struct qstr *iname,
if (iname->name[0] == '_')
bigname = 1;
if ((bigname && (iname->len != 33)) ||
(!bigname && (iname->len > 43))) {
ret = -ENOENT;
}
(!bigname && (iname->len > 43)))
return -ENOENT;
fname->crypto_buf.name = kmalloc(32, GFP_KERNEL);
if (fname->crypto_buf.name == NULL) {
ret = -ENOMEM;
goto out;
}
if (fname->crypto_buf.name == NULL)
return -ENOMEM;
ret = digest_decode(iname->name + bigname, iname->len - bigname,
fname->crypto_buf.name);
if (ret < 0) {
ret = -ENOENT;
goto out;
goto errout;
}
fname->crypto_buf.len = ret;
if (bigname) {
@ -430,7 +426,7 @@ int f2fs_fname_setup_filename(struct inode *dir, const struct qstr *iname,
fname->disk_name.len = fname->crypto_buf.len;
}
return 0;
out:
errout:
f2fs_fname_crypto_free_buffer(&fname->crypto_buf);
return ret;
}