Few nit's

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1618)

2 files changed, 6 insertions, 9 deletions

diff --git a/doc/man3/EVP_DigestInit.pod b/doc/man3/EVP_DigestInit.pod
index d57f09daad..7d283fa7d3 100644
--- a/doc/man3/EVP_DigestInit.pod
+++ b/doc/man3/EVP_DigestInit.pod
@@ -210,7 +210,7 @@ digest name passed on the command line.
  unsigned char md_value[EVP_MAX_MD_SIZE];
  int md_len, i;
 
- if (!argv[1]) {
+ if (argv[1] == NULL) {
         printf("Usage: mdtest digestname\n");
         exit(1);
  }
diff --git a/doc/man3/SSL_CTX_set_tlsext_ticket_key_cb.pod b/doc/man3/SSL_CTX_set_tlsext_ticket_key_cb.pod
index 71f8792275..0a925ce03a 100644
--- a/doc/man3/SSL_CTX_set_tlsext_ticket_key_cb.pod
+++ b/doc/man3/SSL_CTX_set_tlsext_ticket_key_cb.pod
@@ -130,20 +130,18 @@ Reference Implementation:
   static int ssl_tlsext_ticket_key_cb(SSL *s, unsigned char key_name[16], unsigned char *iv, EVP_CIPHER_CTX *ctx, HMAC_CTX *hctx, int enc)
   {
       if (enc) { /* create new session */
-          if (RAND_bytes(iv, EVP_MAX_IV_LENGTH) ) {
+          if (RAND_bytes(iv, EVP_MAX_IV_LENGTH) )
               return -1; /* insufficient random */
-          }
 
           key = currentkey(); /* something that you need to implement */
-          if ( !key ) {
+          if ( key == NULL ) {
               /* current key doesn't exist or isn't valid */
-              key = createkey(); /* something that you need to implement.
+              key = createkey();  /* something that you need to implement.
                                    * createkey needs to initialise, a name,
                                    * an aes_key, a hmac_key and optionally
                                    * an expire time. */
-              if ( !key ) { /* key couldn't be created */
+              if ( key == NULL )  /* key couldn't be created */
                   return 0;
-              }
           }
           memcpy(key_name, key->name, 16);
 
@@ -155,9 +153,8 @@ Reference Implementation:
       } else { /* retrieve session */
           key = findkey(name);
 
-          if (!key || key->expire < now() ) {
+          if (key == NULL || key->expire < now() )
               return 0;
-          }
 
           HMAC_Init_ex(&hctx, key->hmac_key, 16, EVP_sha256(), NULL);
           EVP_DecryptInit_ex(&ctx, EVP_aes_128_cbc(), NULL, key->aes_key, iv );