WASAPI: Fix an error where a buffer can possible be unreleased.

CHANGES.md

 v0.11.6 - TBD
 ====================
+* WASAPI: Fix a bug where the device is not stopped when an error occurrs when writing to a playback device.
 * The node graph can now be used as a node. This allows node graphs to be connected to other node graphs.
 * Fix a crash with high-pass and band-pass filters.
 * Fix an audio glitch when mixing engine nodes (ma_sound and ma_sound_group).

miniaudio.h

@@ -20842,9 +20842,23 @@ static ma_result ma_device_uninit__wasapi(ma_device* pDevice)
 #endif
 
     if (pDevice->wasapi.pRenderClient) {
+        if (pDevice->wasapi.pMappedBufferPlayback != NULL) {
+            ma_IAudioRenderClient_ReleaseBuffer((ma_IAudioRenderClient*)pDevice->wasapi.pRenderClient, pDevice->wasapi.mappedBufferPlaybackCap, 0);
+            pDevice->wasapi.pMappedBufferPlayback   = NULL;
+            pDevice->wasapi.mappedBufferPlaybackCap = 0;
+            pDevice->wasapi.mappedBufferPlaybackLen = 0;
+        }
+
         ma_IAudioRenderClient_Release((ma_IAudioRenderClient*)pDevice->wasapi.pRenderClient);
     }
     if (pDevice->wasapi.pCaptureClient) {
+        if (pDevice->wasapi.pMappedBufferCapture != NULL) {
+            ma_IAudioCaptureClient_ReleaseBuffer((ma_IAudioCaptureClient*)pDevice->wasapi.pCaptureClient, pDevice->wasapi.mappedBufferCaptureCap);
+            pDevice->wasapi.pMappedBufferCapture   = NULL;
+            pDevice->wasapi.mappedBufferCaptureCap = 0;
+            pDevice->wasapi.mappedBufferCaptureLen = 0;
+        }
+
         ma_IAudioCaptureClient_Release((ma_IAudioCaptureClient*)pDevice->wasapi.pCaptureClient);
     }