Guard against MountService throwing NPE.

Fall through to below logic and return null instead of crashing the
entire app.  We already tell developers the value may be null.

Bug: 17781998
Change-Id: I05dce90ae6bc547d74f8c16d30b3dc7888a937fe

parent 1eee52b1

core/java/android/app/ContextImpl.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -2419,7 +2419,7 @@ class ContextImpl extends Context {
		int res = -1;
		try {
		res = mount.mkdirs(getPackageName(), dir.getAbsolutePath());
		} catch (RemoteException e) {
		} catch (Exception ignored) {
		}
		if (res != 0) {
		Log.w(TAG, "Failed to ensure directory: " + dir);