--- xnu/xnu-517.7.21/iokit/Kernel/IONVRAM.cpp
+++ xnu/xnu-344.12.2/iokit/Kernel/IONVRAM.cpp
@@ -258,7 +258,7 @@
   if (_ofDict == 0) return 0;
   
   // Verify permissions.
-  result = IOUserClient::clientHasPrivilege(current_task(), kIOClientPrivilegeAdministrator);
+  result = IOUserClient::clientHasPrivilege(current_task(), "root");
   if (result != kIOReturnSuccess) {
     variablePerm = getOFVariablePerm(aKey);
     if (variablePerm == kOFVariablePermRootOnly) return 0;
@@ -291,7 +291,7 @@
   if (_ofDict == 0) return false;
   
   // Verify permissions.
-  result = IOUserClient::clientHasPrivilege(current_task(), kIOClientPrivilegeAdministrator);
+  result = IOUserClient::clientHasPrivilege(current_task(), "root");
   if (result != kIOReturnSuccess) {
     propPerm = getOFVariablePerm(aKey);
     if (propPerm != kOFVariablePermUserWrite) return false;
@@ -1421,23 +1421,18 @@
       nvPath = start;
     else if (nvName == 0)
       nvName = start;
-    else {
-      IORegistryEntry * compareEntry = IORegistryEntry::fromPath((const char *) nvPath, gIODTPlane);
-      if (entry == compareEntry) {
-        if (compareEntry)
-          compareEntry->release();
-	*name = OSSymbol::withCString((const char *) nvName);
-	*value = unescapeBytesToData(start, where - start - 1);
-	if ((*name != 0) && (*value != 0))
-	  err = kIOReturnSuccess;
-	else
-	  err = kIOReturnNoMemory;
-	break;
-      }
-      if (compareEntry)
-        compareEntry->release();
+    else if (entry ==
+	     IORegistryEntry::fromPath((const char *) nvPath, gIODTPlane)) {
+      *name = OSSymbol::withCString((const char *) nvName);
+      *value = unescapeBytesToData(start, where - start - 1);
+      if ((*name != 0) && (*value != 0))
+        err = kIOReturnSuccess;
+      else
+        err = kIOReturnNoMemory;
+      break;
+    } else
       nvPath = nvName = 0;
-    }
+    
     start = where;
   }
 
@@ -1480,21 +1475,15 @@
         nvPath = start;
       else if (nvName == 0)
         nvName = start;
-      else {
-        IORegistryEntry * compareEntry = IORegistryEntry::fromPath((const char *) nvPath, gIODTPlane);
-        if (entry == compareEntry) {
-          if (compareEntry)
-             compareEntry->release();
-           // delete old property (nvPath -> where)
-           data = OSData::withBytes(propStart, nvPath - propStart);
-           if (data)
-             ok &= data->appendBytes(where, end - where);
-	   break;
-        }
-        if (compareEntry)
-          compareEntry->release();
+      else if (entry ==
+                IORegistryEntry::fromPath((const char *) nvPath, gIODTPlane)) {
+        // delete old property (nvPath -> where)
+        data = OSData::withBytes(propStart, nvPath - propStart);
+        if (data)
+          ok &= data->appendBytes(where, end - where);
+        break;
+      } else
         nvPath = nvName = 0;
-      }
         
       start = where;
     }