From efa7dd64443f246004751bdaa5671bf6836e07ff Mon Sep 17 00:00:00 2001
From: Rich Salz <rsalz@openssl.org>
Date: Fri, 1 May 2015 10:15:18 -0400
Subject: free NULL cleanup 11

Don't check for NULL before calling free functions. This gets:
        ERR_STATE_free
        ENGINE_free
        DSO_free
        CMAC_CTX_free
        COMP_CTX_free
        CONF_free
        NCONF_free NCONF_free_data _CONF_free_data
        A sk_free use within OBJ_sigid_free
        TS_TST_INFO_free (rest of TS_ API was okay)
        Doc update for UI_free (all uses were fine)
        X509V3_conf_free
        X509V3_section_free
        X509V3_string_free

Reviewed-by: Richard Levitte <levitte@openssl.org>
---
 crypto/cmac/cmac.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'crypto/cmac/cmac.c')

diff --git a/crypto/cmac/cmac.c b/crypto/cmac/cmac.c
index 19018480f2..5e8fdc399b 100644
--- a/crypto/cmac/cmac.c
+++ b/crypto/cmac/cmac.c
@@ -115,6 +115,8 @@ 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);
 }
-- 
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