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-rw-r--r--lib/erl_interface/src/legacy/erl_fix_alloc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/erl_interface/src/legacy/erl_fix_alloc.c b/lib/erl_interface/src/legacy/erl_fix_alloc.c
index 20f3024e41..ca09fc3b8b 100644
--- a/lib/erl_interface/src/legacy/erl_fix_alloc.c
+++ b/lib/erl_interface/src/legacy/erl_fix_alloc.c
@@ -109,6 +109,10 @@ void *erl_eterm_alloc (void)
erl_eterm_state->freed--;
} else if ((b = malloc(sizeof(*b))) == NULL) {
erl_errno = ENOMEM;
+#ifdef _REENTRANT
+ ei_mutex_unlock(erl_eterm_state->lock);
+#endif /* _REENTRANT */
+ return NULL;
}
erl_eterm_state->allocated++;
b->free = 0;