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authorEric Biggers <ebiggers@google.com>2016-12-05 22:12:45 +0300
committerTheodore Ts'o <tytso@mit.edu>2017-01-01 00:26:20 +0300
commitdffd0cfa06d4ed83bb3ae8eb067989ceec5d18e1 (patch)
tree8da7b6e52b4727c46f39afd3dabb6dd4e08f0fb5 /fs/crypto
parent54475f531bb8d7078f63c159e5e0615d486c498c (diff)
downloadlinux-dffd0cfa06d4ed83bb3ae8eb067989ceec5d18e1.tar.xz
fscrypt: use ENOTDIR when setting encryption policy on nondirectory
As part of an effort to clean up fscrypt-related error codes, make FS_IOC_SET_ENCRYPTION_POLICY fail with ENOTDIR when the file descriptor does not refer to a directory. This is more descriptive than EINVAL, which was ambiguous with some of the other error cases. I am not aware of any users who might be relying on the previous error code of EINVAL, which was never documented anywhere, and in some buggy kernels did not exist at all as the S_ISDIR() check was missing. This failure case will be exercised by an xfstest. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/crypto')
-rw-r--r--fs/crypto/policy.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index d6cd7ea4851d..40ecd7173e34 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -116,7 +116,7 @@ int fscrypt_ioctl_set_policy(struct file *filp, const void __user *arg)
if (!inode_has_encryption_context(inode)) {
if (!S_ISDIR(inode->i_mode))
- ret = -EINVAL;
+ ret = -ENOTDIR;
else if (!inode->i_sb->s_cop->empty_dir)
ret = -EOPNOTSUPP;
else if (!inode->i_sb->s_cop->empty_dir(inode))