[PATCH v2] dmstyle: IDirectMusicTrack GetParam add pointer check.

[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=59216

Your paranoid android.


=== build (build log) ===

error: patch failed: dlls/dmstyle/auditiontrack.c:121
error: patch failed: dlls/dmstyle/chordtrack.c:124
error: patch failed: dlls/dmstyle/commandtrack.c:123
error: patch failed: dlls/dmstyle/motiftrack.c:121
error: patch failed: dlls/dmstyle/mutetrack.c:121
error: patch failed: dlls/dmstyle/styletrack.c:123
error: patch failed: dlls/dmstyle/tests/dmstyle.c:279
Task: Patch failed to apply