[patch 1/11] lsm stacking: don't default to dummy_##hook

[serue@us.ibm.com]

When stacking multiple LSMs, we do not want hooks which are undefined to
be substituted with the dummy_##hook.

Signed-off-by: Serge Hallyn <serue@us.ibm.com>
---
 security/security.c |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

Index: linux-2.6.12-rc6/security/security.c
===================================================================
--- linux-2.6.12-rc6.orig/security/security.c
+++ linux-2.6.12-rc6/security/security.c
@@ -81,15 +81,15 @@ int __init security_init(void)
  */
 int register_security(struct security_operations *ops)
 {
+	if (security_ops != &dummy_security_ops)
+		return -EAGAIN;
+
 	if (verify(ops)) {
 		printk(KERN_DEBUG "%s could not verify "
 		       "security_operations structure.\n", __FUNCTION__);
 		return -EINVAL;
 	}
 
-	if (security_ops != &dummy_security_ops)
-		return -EAGAIN;
-
 	security_ops = ops;
 
 	return 0;
@@ -134,9 +134,9 @@ int unregister_security(struct security_
  */
 int mod_reg_security(const char *name, struct security_operations *ops)
 {
-	if (verify(ops)) {
-		printk(KERN_INFO "%s could not verify "
-		       "security operations.\n", __FUNCTION__);
+	if (!ops) {
+		printk(KERN_INFO "%s received NULL security operations",
+						       __FUNCTION__);
 		return -EINVAL;
 	}