Check mMediaProvider for null

Getting the content provider could
return null in some cases where the user
is locked, so check for that when closing.

Bug: 73656609
Test: no crash
Change-Id: I607cd2da5348520616a1c171d0d8a1afacabe592

parent 74cfe567

media/java/android/mtp/MtpDatabase.java

+3 −1

Original line number	Diff line number	Diff line
		@@ -292,7 +292,9 @@ public class MtpDatabase implements AutoCloseable {
		mCloseGuard.close();
		if (mClosed.compareAndSet(false, true)) {
		mMediaScanner.close();
		if (mMediaProvider != null) {
		mMediaProvider.close();
		}
		native_finalize();
		}
		}