diff --git a/libutils/Timers.cpp b/libutils/Timers.cpp
index fd3f4a9..4cfac57 100644
--- a/libutils/Timers.cpp
+++ b/libutils/Timers.cpp
@@ -14,9 +14,6 @@
  * limitations under the License.
  */
 
-//
-// Timer functions.
-//
 #include <utils/Timers.h>
 
 #include <limits.h>
@@ -24,11 +21,12 @@
 #include <time.h>
 
 #include <android-base/macros.h>
+#include <utils/Log.h>
 
 static constexpr size_t clock_id_max = 5;
 
 static void checkClockId(int clock) {
-    if (clock < 0 || clock >= clock_id_max) abort();
+    LOG_ALWAYS_FATAL_IF(clock < 0 || clock >= clock_id_max, "invalid clock id");
 }
 
 #if defined(__linux__)
@@ -56,18 +54,10 @@
 }
 #endif
 
-int toMillisecondTimeoutDelay(nsecs_t referenceTime, nsecs_t timeoutTime)
-{
-    nsecs_t timeoutDelayMillis;
-    if (timeoutTime > referenceTime) {
-        uint64_t timeoutDelay = uint64_t(timeoutTime - referenceTime);
-        if (timeoutDelay > uint64_t((INT_MAX - 1) * 1000000LL)) {
-            timeoutDelayMillis = -1;
-        } else {
-            timeoutDelayMillis = (timeoutDelay + 999999LL) / 1000000LL;
-        }
-    } else {
-        timeoutDelayMillis = 0;
-    }
-    return (int)timeoutDelayMillis;
+int toMillisecondTimeoutDelay(nsecs_t referenceTime, nsecs_t timeoutTime) {
+    if (timeoutTime <= referenceTime) return 0;
+
+    uint64_t timeoutDelay = uint64_t(timeoutTime - referenceTime);
+    if (timeoutDelay > uint64_t((INT_MAX - 1) * 1000000LL)) return -1;
+    return (timeoutDelay + 999999LL) / 1000000LL;
 }
diff --git a/libutils/Timers_test.cpp b/libutils/Timers_test.cpp
index ec0051e..c0a6d49 100644
--- a/libutils/Timers_test.cpp
+++ b/libutils/Timers_test.cpp
@@ -27,3 +27,12 @@
     systemTime(SYSTEM_TIME_BOOTTIME);
     EXPECT_EXIT(systemTime(SYSTEM_TIME_BOOTTIME + 1), testing::KilledBySignal(SIGABRT), "");
 }
+
+TEST(Timers, toMillisecondTimeoutDelay) {
+    EXPECT_EQ(0, toMillisecondTimeoutDelay(100, 100));
+    EXPECT_EQ(0, toMillisecondTimeoutDelay(100, 10));
+
+    EXPECT_EQ(-1, toMillisecondTimeoutDelay(0, INT_MAX * 1000000LL));
+
+    EXPECT_EQ(123, toMillisecondTimeoutDelay(0, 123000000));
+}
diff --git a/libutils/include/utils/KeyedVector.h b/libutils/include/utils/KeyedVector.h
index 7bda99b..5cf7a11 100644
--- a/libutils/include/utils/KeyedVector.h
+++ b/libutils/include/utils/KeyedVector.h
@@ -47,7 +47,7 @@
 
     inline  void            clear()                     { mVector.clear(); }
 
-    /*! 
+    /*!
      * vector stats
      */
 
@@ -63,14 +63,14 @@
     // returns true if the arguments is known to be identical to this vector
     inline bool isIdenticalTo(const KeyedVector& rhs) const;
 
-    /*! 
+    /*!
      * accessors
      */
-            const VALUE&    valueFor(const KEY& key) const;
-            const VALUE&    valueAt(size_t index) const;
-            const KEY&      keyAt(size_t index) const;
-            ssize_t         indexOfKey(const KEY& key) const;
-            const VALUE&    operator[] (size_t index) const;
+    const VALUE& valueFor(const KEY& key) const;
+    const VALUE& valueAt(size_t index) const;
+    const KEY& keyAt(size_t index) const;
+    ssize_t indexOfKey(const KEY& key) const;
+    const VALUE& operator[](size_t index) const;
 
     /*!
      * modifying the array
@@ -79,10 +79,10 @@
             VALUE&          editValueFor(const KEY& key);
             VALUE&          editValueAt(size_t index);
 
-            /*! 
+            /*!
              * add/insert/replace items
              */
-             
+
             ssize_t         add(const KEY& key, const VALUE& item);
             ssize_t         replaceValueFor(const KEY& key, const VALUE& item);
             ssize_t         replaceValueAt(size_t index, const VALUE& item);
@@ -93,7 +93,7 @@
 
             ssize_t         removeItem(const KEY& key);
             ssize_t         removeItemsAt(size_t index, size_t count = 1);
-            
+
 private:
             SortedVector< key_value_pair_t<KEY, VALUE> >    mVector;
 };
@@ -208,7 +208,7 @@
 template<typename KEY, typename VALUE> inline
 const VALUE& DefaultKeyedVector<KEY,VALUE>::valueFor(const KEY& key) const {
     ssize_t i = this->indexOfKey(key);
-    return i >= 0 ? KeyedVector<KEY,VALUE>::valueAt(i) : mDefault;
+    return i >= 0 ? KeyedVector<KEY, VALUE>::valueAt(static_cast<size_t>(i)) : mDefault;
 }
 
 }  // namespace android