sbsec = kmalloc(sizeof(struct superblock_security_struct), GFP_KERNEL); 
sbsec = kzalloc(sizeof(struct superblock_security_struct), GFP_KERNEL); 
static int superblock_alloc_security(struct super_block *sb){	struct superblock_security_struct *sbsec;	sbsec = kmalloc(sizeof(struct superblock_security_struct), GFP_KERNEL);	if (!sbsec)		return -ENOMEM;	memset(sbsec, 0, sizeof(struct superblock_security_struct));	init_MUTEX(&sbsec->sem);	INIT_LIST_HEAD(&sbsec->list);	INIT_LIST_HEAD(&sbsec->isec_head);	spin_lock_init(&sbsec->isec_lock);	sbsec->magic = SELINUX_MAGIC;	sbsec->sb = sb;	sbsec->sid = SECINITSID_UNLABELED;	sbsec->def_sid = SECINITSID_FILE;	sb->s_security = sbsec;	return 0;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/89d155ef62e5e0c10e4b37aaa5056f0beafe10e6/hooks.c/clean/security/selinux/hooks.c