Fix crash in settings when no fingerprint is available

Bug: 20207600 Change-Id: If2a6251b085f22fffabc43aee197550328e6bfef
2015-04-14 11:14:19 -07:00
parent 94573125d5
commit 3b62e84289
1 changed files with 4 additions and 2 deletions
--- a/src/com/android/settings/FingerprintUiHelper.java
+++ b/src/com/android/settings/FingerprintUiHelper.java
@@ -56,8 +56,10 @@ public class FingerprintUiHelper extends FingerprintManager.AuthenticationCallba
    }

    public void stopListening() {
-        mCancellationSignal.cancel();
-        mCancellationSignal = null;
+        if (mCancellationSignal != null) {
+            mCancellationSignal.cancel();
+            mCancellationSignal = null;
+        }
    }

    private void setFingerprintIconVisibility(boolean visible) {