9p: close ACL leaks
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index e98f56d..7350f53 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -185,12 +185,15 @@
}
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 @@
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 @@
}
if (retval > 0)
*pacl = clone;
+ else
+ posix_acl_release(clone);
}
*modep = mode;
return 0;
cleanup:
- posix_acl_release(acl);
return retval;
}