Resource Manager: Fix a possible crash when loading fails.

Public issue: https://github.com/mackron/miniaudio/issues/1129

CHANGES.md

@@ -4,6 +4,7 @@ v0.11.26 - TBD
 * Fixed a crash when passing in null for the read or seek callbacks for a decoder.
 * Fixed an error with node initialization.
 * Fixed build for Arm64EC on MSVC.
+* Resource Manager: Fixed a possible crash when loading fails.
 * PulseAudio: Improvements to format negotiation to better handle cases when PulseAudio reports s24_32 as its native format.
 * Emscripten: Fixed an error with ALLOW_MEMORY_GROWTH.
 * Emscripten: Fixed some issues relating to handling of 64-bit pointers.

miniaudio.h

@@ -71042,11 +71042,15 @@ static ma_result ma_resource_manager_data_buffer_node_acquire(ma_resource_manage
     }
 
 done:
+    {
+        ma_bool32 isDataOwnedByResourceManager = pDataBufferNode->isDataOwnedByResourceManager;
+
         /* If we failed to initialize the data buffer we need to free it. */
         if (result != MA_SUCCESS) {
             if (nodeAlreadyExists == MA_FALSE) {
                 ma_resource_manager_data_buffer_node_remove(pResourceManager, pDataBufferNode);
                 ma_free(pDataBufferNode, &pResourceManager->config.allocationCallbacks);
+                pDataBufferNode = NULL;
             }
         }
 
@@ -71054,11 +71058,12 @@ done:
         The init notification needs to be uninitialized. This will be used if the node does not already
         exist, and we've specified ASYNC | WAIT_INIT.
         */
-    if (nodeAlreadyExists == MA_FALSE && pDataBufferNode->isDataOwnedByResourceManager && (flags & MA_RESOURCE_MANAGER_DATA_SOURCE_FLAG_ASYNC) != 0) {
+        if (nodeAlreadyExists == MA_FALSE && isDataOwnedByResourceManager && (flags & MA_RESOURCE_MANAGER_DATA_SOURCE_FLAG_ASYNC) != 0) {
             if ((flags & MA_RESOURCE_MANAGER_DATA_SOURCE_FLAG_WAIT_INIT) != 0) {
                 ma_resource_manager_inline_notification_uninit(&initNotification);
             }
         }
+    }
 
     if (ppDataBufferNode != NULL) {
         *ppDataBufferNode = pDataBufferNode;