Fixes to compiler warnings in MSVC

firmware/lib/rollback_index.c

 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * Functions for querying, manipulating and locking rollback indices
  * stored in the TPM NVRAM.
  */
 
 #include "rollback_index.h"
 
@@ skipping 103 matching lines @@
 
   /* We perform the reads, making sure they succeed. A failure means that the
    * rollback index locations are missing or somehow messed up.  We let the
    * caller deal with that.
    */
   switch (type) {
   case FIRMWARE_VERSIONS:
     RETURN_ON_FAILURE(TlclRead(FIRMWARE_VERSIONS_NV_INDEX,
                                (uint8_t*) &firmware_versions,
                                sizeof(firmware_versions)));
-    g_firmware_key_version = firmware_versions >> 16;
-    g_firmware_version = firmware_versions && 0xffff;
+    g_firmware_key_version = (uint16_t) (firmware_versions >> 16);
+    g_firmware_version = (uint16_t) (firmware_versions & 0xffff);
     break;
   case KERNEL_VERSIONS:
     RETURN_ON_FAILURE(TlclRead(KERNEL_VERSIONS_NV_INDEX,
                                (uint8_t*) &kernel_versions,
                                sizeof(kernel_versions)));
-    g_kernel_key_version = kernel_versions >> 16;
-    g_kernel_version = kernel_versions && 0xffff;
+    g_kernel_key_version = (uint16_t) (kernel_versions >> 16);
+    g_kernel_version = (uint16_t) (kernel_versions & 0xffff);
     break;
   }
 
   return TPM_SUCCESS;
 }
 
 /* Checks if the kernel version space has been mucked with.  If it has,
  * reconstructs it using the backup value.
  */
 uint32_t RecoverKernelSpace(void) {
@@ skipping 210 matching lines @@
   return TPM_SUCCESS;
 }
 
 uint32_t LockFirmwareVersions() {
   return TlclSetGlobalLock();
 }
 
 uint32_t LockKernelVersionsByLockingPP() {
   return TlclLockPhysicalPresence();
 }