diff --git a/ports/mimxrt/mbedtls/mbedtls_port.c b/ports/mimxrt/mbedtls/mbedtls_port.c index eb11f5141b..928f12f3f1 100644 --- a/ports/mimxrt/mbedtls/mbedtls_port.c +++ b/ports/mimxrt/mbedtls/mbedtls_port.c @@ -64,6 +64,9 @@ void *m_calloc_mbedtls(size_t nmemb, size_t size) { } void m_free_mbedtls(void *ptr_in) { + if (ptr_in == NULL) { + return; + } void **ptr = &((void **)ptr_in)[-2]; #if DEBUG uint32_t nb;