diff --git a/core/java/com/android/internal/util/FastPrintWriter.java b/core/java/com/android/internal/util/FastPrintWriter.java
index e46e6b026fd90..dc3832a1713d4 100644
--- a/core/java/com/android/internal/util/FastPrintWriter.java
+++ b/core/java/com/android/internal/util/FastPrintWriter.java
@@ -345,7 +345,7 @@ public class FastPrintWriter extends PrintWriter {
             if (mOutputStream != null) {
                 CharBuffer charBuffer = CharBuffer.wrap(mText, 0, mPos);
                 CoderResult result = mCharset.encode(charBuffer, mBytes, true);
-                while (true) {
+                while (!mIoError) {
                     if (result.isError()) {
                         throw new IOException(result.toString());
                     } else if (result.isOverflow()) {