Rémi Bernon : dmusic: Avoid crashing in traces if wave doesn't have a WSMPL.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 182338bab26cdfd904336c0a0508537ad8e62d47
URL:    https://gitlab.winehq.org/wine/wine/-/commit/182338bab26cdfd904336c0a0508537...

Author: Rémi Bernon <rbernon(a)codeweavers.com>
Date:   Tue Sep 26 08:28:19 2023 +0200

dmusic: Avoid crashing in traces if wave doesn't have a WSMPL.

---

 dlls/dmusic/wave.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/dlls/dmusic/wave.c b/dlls/dmusic/wave.c
index 08146db0d1c..6637612596a 100644
--- a/dlls/dmusic/wave.c
+++ b/dlls/dmusic/wave.c
@@ -199,14 +199,17 @@ HRESULT wave_create_from_chunk(IStream *stream, struct chunk_entry *parent, IUnk
             TRACE("    - wBitsPerSample: %u\n", This->format->wBitsPerSample);
             TRACE("    - cbSize: %u\n", This->format->cbSize);
         }
-        TRACE(" - sample: {size: %lu, unity_note: %u, fine_tune: %d, attenuation: %ld, options: %#lx, loops: %lu}\n",
-                This->sample->head.cbSize, This->sample->head.usUnityNote,
-                This->sample->head.sFineTune, This->sample->head.lAttenuation,
-                This->sample->head.fulOptions, This->sample->head.cSampleLoops);
-        for (i = 0; i < This->sample->head.cSampleLoops; i++)
-            TRACE(" - loops[%u]: {size: %lu, type: %lu, start: %lu, length: %lu}\n", i,
-                    This->sample->loops[i].cbSize, This->sample->loops[i].ulType,
-                    This->sample->loops[i].ulStart, This->sample->loops[i].ulLength);
+        if (This->sample)
+        {
+            TRACE(" - sample: {size: %lu, unity_note: %u, fine_tune: %d, attenuation: %ld, options: %#lx, loops: %lu}\n",
+                    This->sample->head.cbSize, This->sample->head.usUnityNote,
+                    This->sample->head.sFineTune, This->sample->head.lAttenuation,
+                    This->sample->head.fulOptions, This->sample->head.cSampleLoops);
+            for (i = 0; i < This->sample->head.cSampleLoops; i++)
+                TRACE(" - loops[%u]: {size: %lu, type: %lu, start: %lu, length: %lu}\n", i,
+                        This->sample->loops[i].cbSize, This->sample->loops[i].ulType,
+                        This->sample->loops[i].ulStart, This->sample->loops[i].ulLength);
+        }
     }
 
     *ret_iface = iface;