Set current user to USER_NULL when HAL dies

Fixes: 129527541

Test: 1) Enroll fingerprint
      2) Go to keyguard
      3) Kill fingerprint HAL
      4) Look at enumerate logs after HAL is back - no fingerprints removed
      5) Authenticate works as expected

Change-Id: I11520cd3e55ed5e7fcf0f94782a6dc4fa85735c8

parent 1d6a2867

services/core/java/com/android/server/biometrics/BiometricServiceBase.java

+1 −0

Original line number	Diff line number	Diff line
		@@ -657,6 +657,7 @@ public abstract class BiometricServiceBase extends SystemService
		Slog.e(getTag(), "HAL died");
		mMetricsLogger.count(getMetrics().tagHalDied(), 1);
		mHALDeathCount++;
		mCurrentUserId = UserHandle.USER_NULL;
		handleError(getHalDeviceId(), BiometricConstants.BIOMETRIC_ERROR_HW_UNAVAILABLE,
		0 /vendorCode /);