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| author | David Howells <dhowells@redhat.com> | 2012-06-25 12:55:18 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-07-14 16:37:27 +0400 |
| commit | be34d1a3bc4b6f357a49acb55ae870c81337e4f0 (patch) | |
| tree | 39caaf1b4965d47be64ce45491477fce555b2d17 /kernel | |
| parent | 55e4def0a6e79e7eb53017c4935adfed76510cd7 (diff) | |
| download | linux-be34d1a3bc4b6f357a49acb55ae870c81337e4f0.tar.gz linux-be34d1a3bc4b6f357a49acb55ae870c81337e4f0.tar.bz2 linux-be34d1a3bc4b6f357a49acb55ae870c81337e4f0.zip | |
VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors
copy_tree() can theoretically fail in a case other than ENOMEM, but always
returns NULL which is interpreted by callers as -ENOMEM. Change it to return
an explicit error.
Also change clone_mnt() for consistency and because union mounts will add new
error cases.
Thanks to Andreas Gruenbacher <agruen@suse.de> for a bug fix.
[AV: folded braino fix by Dan Carpenter]
Original-author: Valerie Aurora <vaurora@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Valerie Aurora <valerie.aurora@gmail.com>
Cc: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/audit_tree.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c index 5bf0790497e7..3a5ca582ba1e 100644 --- a/kernel/audit_tree.c +++ b/kernel/audit_tree.c @@ -595,7 +595,7 @@ void audit_trim_trees(void) root_mnt = collect_mounts(&path); path_put(&path); - if (!root_mnt) + if (IS_ERR(root_mnt)) goto skip_it; spin_lock(&hash_lock); @@ -669,8 +669,8 @@ int audit_add_tree_rule(struct audit_krule *rule) goto Err; mnt = collect_mounts(&path); path_put(&path); - if (!mnt) { - err = -ENOMEM; + if (IS_ERR(mnt)) { + err = PTR_ERR(mnt); goto Err; } @@ -719,8 +719,8 @@ int audit_tag_tree(char *old, char *new) return err; tagged = collect_mounts(&path2); path_put(&path2); - if (!tagged) - return -ENOMEM; + if (IS_ERR(tagged)) + return PTR_ERR(tagged); err = kern_path(old, 0, &path1); if (err) { |