[PATCH 2/2] user32: Fix NULL dereference in UnregisterDeviceNotification

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=72291

Your paranoid android.


=== debiant (32 bit Chinese:China report) ===

user32:
menu.c:2337: Test failed: test 25

=== debiant (64 bit WoW report) ===

user32:
clipboard.c:833: Test failed: 6: gle 5
clipboard.c:838: Test failed: 6.0: got 0000 instead of 0008
clipboard.c:868: Test failed: 6: gle 1418