py/runtime: Mark m_malloc_fail() as NORETURN.
diff --git a/py/misc.h b/py/misc.h
index caa5945..5ac0f93 100644
--- a/py/misc.h
+++ b/py/misc.h
@@ -92,7 +92,7 @@
void *m_realloc_maybe(void *ptr, size_t new_num_bytes, bool allow_move);
void m_free(void *ptr);
#endif
-void *m_malloc_fail(size_t num_bytes);
+NORETURN void *m_malloc_fail(size_t num_bytes);
#if MICROPY_MEM_STATS
size_t m_get_total_bytes_allocated(void);
diff --git a/py/runtime.c b/py/runtime.c
index bf2bfb8..0a3a4b1 100644
--- a/py/runtime.c
+++ b/py/runtime.c
@@ -1408,7 +1408,7 @@
#endif // MICROPY_ENABLE_COMPILER
-void *m_malloc_fail(size_t num_bytes) {
+NORETURN void *m_malloc_fail(size_t num_bytes) {
DEBUG_printf("memory allocation failed, allocating %u bytes\n", (uint)num_bytes);
if (0) {
// dummy