Avoid NPE in case either front or back camera is absentlineage-17.0

Check the front or back facing camera id before
trying to insert it in the facing cache.

Bug: 140406062
Test: Manual using application
Change-Id: I9b263b8532284932a5f2d8d88ea20e8881ab1de3
Merged-In: I9b263b8532284932a5f2d8d88ea20e8881ab1de3

1 files changed, 4 insertions, 2 deletions

diff --git a/src/com/android/camera/one/v2/Camera2OneCameraManagerImpl.java b/src/com/android/camera/one/v2/Camera2OneCameraManagerImpl.java
index 031c6103d..a493e736d 100644
--- a/src/com/android/camera/one/v2/Camera2OneCameraManagerImpl.java
+++ b/src/com/android/camera/one/v2/Camera2OneCameraManagerImpl.java
@@ -145,7 +145,9 @@ public class Camera2OneCameraManagerImpl implements OneCameraManager {
             id = findFirstBackCameraId();
         }
 
-        mCameraFacingCache.put(facing, id);
+        if (id != null) {
+            mCameraFacingCache.put(facing, id);
+        }
         return id;
     }
 
@@ -187,4 +189,4 @@ public class Camera2OneCameraManagerImpl implements OneCameraManager {
         return null;
     }
 
-}
\ No newline at end of file
+}