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[bluetooth_proxy] Fix connection slot race by deferring slot release until GATT close (#10303)

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This commit is contained in:
J. Nick Koston
2025-08-19 14:27:22 -05:00
committed by Jesse Hills
parent 8356f7fcd3
commit ad5f6f0cfe
1 changed files with 10 additions and 1 deletions
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11
esphome/components/bluetooth_proxy/bluetooth_connection.cpp
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@@ -375,10 +375,19 @@ bool BluetoothConnection::gattc_event_handler(esp_gattc_cb_event_t event, esp_ga
switch (event) { switch (event) {
case ESP_GATTC_DISCONNECT_EVT: { case ESP_GATTC_DISCONNECT_EVT: {
this->reset_connection_(param->disconnect.reason); // Don't reset connection yet - wait for CLOSE_EVT to ensure controller has freed resources
// This prevents race condition where we mark slot as free before controller cleanup is complete
ESP_LOGD(TAG, "[%d] [%s] Disconnect, reason=0x%02x", this->connection_index_, this->address_str_.c_str(),
param->disconnect.reason);
// Send disconnection notification but don't free the slot yet
this->proxy_->send_device_connection(this->address_, false, 0, param->disconnect.reason);
break; break;
} }
case ESP_GATTC_CLOSE_EVT: { case ESP_GATTC_CLOSE_EVT: {
ESP_LOGD(TAG, "[%d] [%s] Close, reason=0x%02x, freeing slot", this->connection_index_, this->address_str_.c_str(),
param->close.reason);
// Now the GATT connection is fully closed and controller resources are freed
// Safe to mark the connection slot as available
this->reset_connection_(param->close.reason); this->reset_connection_(param->close.reason);
break; break;
} }