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authorAl Viro <viro@zeniv.linux.org.uk>2011-07-23 02:28:13 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2011-07-24 10:10:18 -0400
commit1ec95bf34d976b38897d1977b155a544d77b05e7 (patch)
tree4ab00349b5bb528bf24631c6e80402cbbc190e42 /fs/9p/acl.c
parentc0d960f038bdfe0fa73c9f698ba836ed20b672c9 (diff)
9p: close ACL leaks
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/9p/acl.c')
-rw-r--r--fs/9p/acl.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index e98f56d3787..7350f53f3b5 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -185,12 +185,15 @@ int v9fs_acl_chmod(struct dentry *dentry)
}
int v9fs_set_create_acl(struct dentry *dentry,
- struct posix_acl *dpacl, struct posix_acl *pacl)
+ struct posix_acl **dpacl, struct posix_acl **pacl)
{
- v9fs_set_acl(dentry, ACL_TYPE_DEFAULT, dpacl);
- v9fs_set_acl(dentry, ACL_TYPE_ACCESS, pacl);
- posix_acl_release(dpacl);
- posix_acl_release(pacl);
+ if (dentry) {
+ v9fs_set_acl(dentry, ACL_TYPE_DEFAULT, *dpacl);
+ v9fs_set_acl(dentry, ACL_TYPE_ACCESS, *pacl);
+ }
+ posix_acl_release(*dpacl);
+ posix_acl_release(*pacl);
+ *dpacl = *pacl = NULL;
return 0;
}
@@ -212,11 +215,11 @@ int v9fs_acl_mode(struct inode *dir, mode_t *modep,
struct posix_acl *clone;
if (S_ISDIR(mode))
- *dpacl = acl;
+ *dpacl = posix_acl_dup(acl);
clone = posix_acl_clone(acl, GFP_NOFS);
- retval = -ENOMEM;
+ posix_acl_release(acl);
if (!clone)
- goto cleanup;
+ return -ENOMEM;
retval = posix_acl_create_masq(clone, &mode);
if (retval < 0) {
@@ -225,11 +228,12 @@ int v9fs_acl_mode(struct inode *dir, mode_t *modep,
}
if (retval > 0)
*pacl = clone;
+ else
+ posix_acl_release(clone);
}
*modep = mode;
return 0;
cleanup:
- posix_acl_release(acl);
return retval;
}