[PATCH 1/1] dmusic: Only extract name in EnumInstrument when the valid flag is set.

[Bernhard Übelacker]

From: Bernhard Übelacker

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56186
---
 dlls/dmusic/collection.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/dlls/dmusic/collection.c b/dlls/dmusic/collection.c
index 5cf129cfdd1..dae27fb4133 100644
--- a/dlls/dmusic/collection.c
+++ b/dlls/dmusic/collection.c
@@ -208,7 +208,14 @@ static HRESULT WINAPI collection_EnumInstrument(IDirectMusicCollection *iface,
     {
         if (index--) continue;
         *patch = entry->patch;
-        if (name) lstrcpynW(name, entry->desc.wszName, name_length);
+        if (name)
+        {
+            if (entry->desc.dwValidData & DMUS_OBJ_NAME)
+                lstrcpynW(name, entry->desc.wszName, name_length);
+            else
+                name[0] = L'\0';
+        }
+
         return S_OK;
     }