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-rw-r--r--ports/mimxrt/mbedtls/mbedtls_port.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/ports/mimxrt/mbedtls/mbedtls_port.c b/ports/mimxrt/mbedtls/mbedtls_port.c
index eb11f5141..928f12f3f 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;