mmdevapi: After GetBuffer, refuse Reset, but Start/Stop is ok.

dlls/winealsa.drv/mmdevdrv.c

@@ -1753,6 +1753,11 @@ static HRESULT WINAPI AudioClient_Reset(IAudioClient *iface)
         return AUDCLNT_E_NOT_STOPPED;
     }
 
+    if(This->buf_state != NOT_LOCKED){
+        LeaveCriticalSection(&This->lock);
+        return AUDCLNT_E_BUFFER_OPERATION_PENDING;
+    }
+
     This->held_frames = 0;
     This->written_frames = 0;
     This->lcl_offs_frames = 0;

dlls/winecoreaudio.drv/mmdevdrv.c

@@ -1391,6 +1391,11 @@ static HRESULT WINAPI AudioClient_Reset(IAudioClient *iface)
         return AUDCLNT_E_NOT_STOPPED;
     }
 
+    if(This->getbuf_last){
+        OSSpinLockUnlock(&This->lock);
+        return AUDCLNT_E_BUFFER_OPERATION_PENDING;
+    }
+
     This->written_frames = 0;
 
     hr = AudioClock_GetPosition_nolock(This, &This->last_time, NULL, TRUE);

dlls/wineoss.drv/mmdevdrv.c

@@ -1379,6 +1379,11 @@ static HRESULT WINAPI AudioClient_Reset(IAudioClient *iface)
         return AUDCLNT_E_NOT_STOPPED;
     }
 
+    if(This->buf_state != NOT_LOCKED){
+        LeaveCriticalSection(&This->lock);
+        return AUDCLNT_E_BUFFER_OPERATION_PENDING;
+    }
+
     This->written_frames = 0;
     This->inbuf_frames = 0;
     This->held_frames = 0;