Paul Gofman : mmdevapi: Store device_name as a pointer in struct audio_client.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 103cd4fa7a3e707c6966ca0975a92f4accdf0144
URL:    https://gitlab.winehq.org/wine/wine/-/commit/103cd4fa7a3e707c6966ca0975a92f4...

Author: Paul Gofman <pgofman(a)codeweavers.com>
Date:   Mon Jun 17 18:12:34 2024 -0600

mmdevapi: Store device_name as a pointer in struct audio_client.

---

 dlls/mmdevapi/client.c   | 9 ++++-----
 dlls/mmdevapi/mmdevdrv.h | 4 +---
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/dlls/mmdevapi/client.c b/dlls/mmdevapi/client.c
index 132b6abae5e..4a205632b12 100644
--- a/dlls/mmdevapi/client.c
+++ b/dlls/mmdevapi/client.c
@@ -623,6 +623,7 @@ static ULONG WINAPI client_Release(IAudioClient3 *iface)
         if (This->stream)
             stream_release(This->stream, This->timer_thread);
 
+        free(This->device_name);
         free(This);
     }
 
@@ -1492,7 +1493,6 @@ HRESULT AudioClient_Create(GUID *guid, IMMDevice *device, IAudioClient **out)
     struct audio_client *This;
     char *name;
     EDataFlow dataflow;
-    size_t size;
     HRESULT hr;
 
     TRACE("%s %p %p\n", debugstr_guid(guid), device, out);
@@ -1507,15 +1507,13 @@ HRESULT AudioClient_Create(GUID *guid, IMMDevice *device, IAudioClient **out)
         return E_UNEXPECTED;
     }
 
-    size = strlen(name) + 1;
-    This = calloc(1, FIELD_OFFSET(struct audio_client, device_name[size]));
+    This = calloc(1, sizeof(*This));
     if (!This) {
         free(name);
         return E_OUTOFMEMORY;
     }
 
-    memcpy(This->device_name, name, size);
-    free(name);
+    This->device_name = name;
 
     This->IAudioCaptureClient_iface.lpVtbl = &AudioCaptureClient_Vtbl;
     This->IAudioClient3_iface.lpVtbl       = &AudioClient3_Vtbl;
@@ -1529,6 +1527,7 @@ HRESULT AudioClient_Create(GUID *guid, IMMDevice *device, IAudioClient **out)
 
     hr = CoCreateFreeThreadedMarshaler((IUnknown *)&This->IAudioClient3_iface, &This->marshal);
     if (FAILED(hr)) {
+        free(This->device_name);
         free(This);
         return hr;
     }
diff --git a/dlls/mmdevapi/mmdevdrv.h b/dlls/mmdevapi/mmdevdrv.h
index 42b01443ff0..7683867a9c1 100644
--- a/dlls/mmdevapi/mmdevdrv.h
+++ b/dlls/mmdevapi/mmdevdrv.h
@@ -80,7 +80,5 @@ struct audio_client {
     struct audio_session_wrapper *session_wrapper;
 
     struct list entry;
-
-    /* Keep at end */
-    char device_name[0];
+    char *device_name;
 };