Merge "Utils: correctly handle read() errors in ReadRandomBytes()" am: a2bd436594

am: 038a274e8a

Change-Id: I64d09e4a3164749a915b079dcffe56940182a7d2

Utils.cpp

@@ -377,7 +377,7 @@ status_t ReadRandomBytes(size_t bytes, char* buf) {
         return -errno;
     }
 
-    size_t n;
+    ssize_t n;
     while ((n = TEMP_FAILURE_RETRY(read(fd, &buf[0], bytes))) > 0) {
         bytes -= n;
         buf += n;