Fix OOM print handling of NULL file pointer

esp8266 · d-a-v · Apr 4, 2022 · Apr 2, 2022 · Apr 2, 2022 · 815ea7d95b68cddb1a5d6c49466bc6700d8a32d3
commit 815ea7d95b68cddb1a5d6c49466bc6700d8a32d3
diff --git a/cores/esp8266/heap.cpp b/cores/esp8266/heap.cpp
@@ -173,7 +173,7 @@ void IRAM_ATTR print_loc(size_t size, const char* file, int line)
         DEBUG_HEAP_PRINTF(":oom(%d)@", (int)size);
 
         bool inISR = ETS_INTR_WITHINISR();
-        if (inISR && (uint32_t)file >= 0x40200000) {
+        if (NULL == file || (inISR && (uint32_t)file >= 0x40200000)) {
             DEBUG_HEAP_PRINTF("File: %p", file);
         } else if (!inISR && (uint32_t)file >= 0x40200000) {
             char buf[strlen_P(file) + 1];