Davide Beatrici : winepulse: Lock sessions in AudioClient's GetService.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: aa9a69f86108c4d4aeaffdee186762df1e05feae
URL:    https://gitlab.winehq.org/wine/wine/-/commit/aa9a69f86108c4d4aeaffdee186762d...

Author: Davide Beatrici <git(a)davidebeatrici.dev>
Date:   Tue Jun  6 10:03:17 2023 +0200

winepulse: Lock sessions in AudioClient's GetService.

---

 dlls/winepulse.drv/mmdevdrv.c | 36 ++++++++++++++++++++++++++----------
 1 file changed, 26 insertions(+), 10 deletions(-)

diff --git a/dlls/winepulse.drv/mmdevdrv.c b/dlls/winepulse.drv/mmdevdrv.c
index 3cd0073a6ad..7b996b3b40e 100644
--- a/dlls/winepulse.drv/mmdevdrv.c
+++ b/dlls/winepulse.drv/mmdevdrv.c
@@ -1025,6 +1025,7 @@ static HRESULT WINAPI AudioClient_GetService(IAudioClient3 *iface, REFIID riid,
         void **ppv)
 {
     ACImpl *This = impl_from_IAudioClient3(iface);
+    HRESULT hr;
 
     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
 
@@ -1032,18 +1033,26 @@ static HRESULT WINAPI AudioClient_GetService(IAudioClient3 *iface, REFIID riid,
         return E_POINTER;
     *ppv = NULL;
 
-    if (!This->stream)
-        return AUDCLNT_E_NOT_INITIALIZED;
+    sessions_lock();
+
+    if (!This->stream) {
+        hr = AUDCLNT_E_NOT_INITIALIZED;
+        goto exit;
+    }
 
     if (IsEqualIID(riid, &IID_IAudioRenderClient)) {
-        if (This->dataflow != eRender)
-            return AUDCLNT_E_WRONG_ENDPOINT_TYPE;
+        if (This->dataflow != eRender) {
+            hr = AUDCLNT_E_WRONG_ENDPOINT_TYPE;
+            goto exit;
+        }
 
         IAudioRenderClient_AddRef(&This->IAudioRenderClient_iface);
         *ppv = &This->IAudioRenderClient_iface;
     } else if (IsEqualIID(riid, &IID_IAudioCaptureClient)) {
-        if (This->dataflow != eCapture)
-            return AUDCLNT_E_WRONG_ENDPOINT_TYPE;
+        if (This->dataflow != eCapture) {
+            hr = AUDCLNT_E_WRONG_ENDPOINT_TYPE;
+            goto exit;
+        }
 
         IAudioCaptureClient_AddRef(&This->IAudioCaptureClient_iface);
         *ppv = &This->IAudioCaptureClient_iface;
@@ -1059,8 +1068,10 @@ static HRESULT WINAPI AudioClient_GetService(IAudioClient3 *iface, REFIID riid,
         const BOOLEAN new_session = !This->session_wrapper;
         if (new_session) {
             This->session_wrapper = session_wrapper_create(This);
-            if (!This->session_wrapper)
-                return E_OUTOFMEMORY;
+            if (!This->session_wrapper) {
+                hr = E_OUTOFMEMORY;
+                goto exit;
+            }
         }
 
         if (IsEqualIID(riid, &IID_IAudioSessionControl))
@@ -1074,10 +1085,15 @@ static HRESULT WINAPI AudioClient_GetService(IAudioClient3 *iface, REFIID riid,
             IUnknown_AddRef((IUnknown *)*ppv);
     } else {
             FIXME("stub %s\n", debugstr_guid(riid));
-            return E_NOINTERFACE;
+            hr = E_NOINTERFACE;
+            goto exit;
     }
 
-    return S_OK;
+    hr = S_OK;
+exit:
+    sessions_unlock();
+
+    return hr;
 }
 
 extern HRESULT WINAPI client_IsOffloadCapable(IAudioClient3 *iface,