From 161ce45a8a34ba81673f60c603e6fc6d37d99c8f Mon Sep 17 00:00:00 2001 From: James Morris Date: Wed, 22 Mar 2006 00:09:17 -0800 Subject: [PATCH] [PATCH] selinuxfs cleanups: sel_fill_super exit path Unify the error path of sel_fill_super() so that all errors pass through the same point and generate an error message. Also, removes a spurious dput() in the error path which breaks the refcounting for the filesystem (litter_kill_super() will correctly clean things up itself on error). Signed-off-by: James Morris Acked-by: Stephen Smalley Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- security/selinux/selinuxfs.c | 41 ++++++++++++++++++++++++----------------- 1 file changed, 24 insertions(+), 17 deletions(-) diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index f898080..1bfb407 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c @@ -1213,28 +1213,34 @@ static int sel_fill_super(struct super_block * sb, void * data, int silent) }; ret = simple_fill_super(sb, SELINUX_MAGIC, selinux_files); if (ret) - return ret; + goto err; dentry = d_alloc_name(sb->s_root, BOOL_DIR_NAME); - if (!dentry) - return -ENOMEM; + if (!dentry) { + ret = -ENOMEM; + goto err; + } ret = sel_make_dir(sb, dentry); if (ret) - return ret; + goto err; bool_dir = dentry; ret = sel_make_bools(); if (ret) - goto out; + goto err; dentry = d_alloc_name(sb->s_root, NULL_FILE_NAME); - if (!dentry) - return -ENOMEM; + if (!dentry) { + ret = -ENOMEM; + goto err; + } inode = sel_make_inode(sb, S_IFCHR | S_IRUGO | S_IWUGO); - if (!inode) - goto out; + if (!inode) { + ret = -ENOMEM; + goto err; + } isec = (struct inode_security_struct*)inode->i_security; isec->sid = SECINITSID_DEVNULL; isec->sclass = SECCLASS_CHR_FILE; @@ -1245,22 +1251,23 @@ static int sel_fill_super(struct super_block * sb, void * data, int silent) selinux_null = dentry; dentry = d_alloc_name(sb->s_root, "avc"); - if (!dentry) - return -ENOMEM; + if (!dentry) { + ret = -ENOMEM; + goto err; + } ret = sel_make_dir(sb, dentry); if (ret) - goto out; + goto err; ret = sel_make_avc_files(dentry); if (ret) - goto out; - - return 0; + goto err; out: - dput(dentry); + return ret; +err: printk(KERN_ERR "%s: failed while creating inodes\n", __FUNCTION__); - return -ENOMEM; + goto out; } static struct super_block *sel_get_sb(struct file_system_type *fs_type, -- 1.8.2.3