Return instead of critical error

- To find a way to handle overflows on the FIFO buffer

Core/Src/canlog.c

@@ -71,7 +71,8 @@ void HAL_CAN_RxFifo0MsgPendingCallback(CAN_HandleTypeDef *hcan)
     CAN_RxHeaderTypeDef rxHeader;
     uint8_t data[8];
 
-    if (HAL_CAN_GetRxMessage(hcan, CAN_RX_FIFO0, &rxHeader, data) != HAL_OK) Error_Handler();
+    // TODO: manage the case of FIFO overflow
+    if (HAL_CAN_GetRxMessage(hcan, CAN_RX_FIFO0, &rxHeader, data) != HAL_OK) return;
 
     message.id = rxHeader.ExtId;
     message.dlc = rxHeader.DLC;