2 files changed, 4 insertions, 0 deletions
diff --git a/openssl/crypto/cmac/Makefile b/openssl/crypto/cmac/Makefile
index 54e7cc39d..6a2840867 100644
--- a/openssl/crypto/cmac/Makefile
+++ b/openssl/crypto/cmac/Makefile
@@ -61,6 +61,8 @@ tests:
 lint:
 	lint -DLINT $(INCLUDES) $(SRC)>fluff
 
+update: depend
+
 depend:
 	@[ -n "$(MAKEDEPEND)" ] # should be set by upper Makefile...
 	$(MAKEDEPEND) -- $(CFLAG) $(INCLUDES) $(DEPFLAG) -- $(PROGS) $(LIBSRC)
diff --git a/openssl/crypto/cmac/cmac.c b/openssl/crypto/cmac/cmac.c
index c5597a3f7..774e6dc91 100644
--- a/openssl/crypto/cmac/cmac.c
+++ b/openssl/crypto/cmac/cmac.c
@@ -126,6 +126,8 @@ EVP_CIPHER_CTX *CMAC_CTX_get0_cipher_ctx(CMAC_CTX *ctx)
 
 void CMAC_CTX_free(CMAC_CTX *ctx)
 {
+    if (!ctx)
+        return;
     CMAC_CTX_cleanup(ctx);
     OPENSSL_free(ctx);
 }