session_server_tls: remove unneeded pointer resets

Author: Michal Struwe

src/session_server_tls.c

@@ -372,7 +372,6 @@ nc_server_tls_cert_to_name(struct nc_ctn *ctn, void *cert_chain, char **username
                 fingerprint_match = 1;
             }
             free(digest_md5);
-            digest_md5 = NULL;
 
             /* SHA-1 */
         } else if (!strncmp(ctn->fingerprint, "02", 2)) {
@@ -388,7 +387,6 @@ nc_server_tls_cert_to_name(struct nc_ctn *ctn, void *cert_chain, char **username
                 fingerprint_match = 1;
             }
             free(digest_sha1);
-            digest_sha1 = NULL;
 
             /* SHA-224 */
         } else if (!strncmp(ctn->fingerprint, "03", 2)) {
@@ -404,7 +402,6 @@ nc_server_tls_cert_to_name(struct nc_ctn *ctn, void *cert_chain, char **username
                 fingerprint_match = 1;
             }
             free(digest_sha224);
-            digest_sha224 = NULL;
 
             /* SHA-256 */
         } else if (!strncmp(ctn->fingerprint, "04", 2)) {
@@ -420,7 +417,6 @@ nc_server_tls_cert_to_name(struct nc_ctn *ctn, void *cert_chain, char **username
                 fingerprint_match = 1;
             }
             free(digest_sha256);
-            digest_sha256 = NULL;
 
             /* SHA-384 */
         } else if (!strncmp(ctn->fingerprint, "05", 2)) {
@@ -436,7 +432,6 @@ nc_server_tls_cert_to_name(struct nc_ctn *ctn, void *cert_chain, char **username
                 fingerprint_match = 1;
             }
             free(digest_sha384);
-            digest_sha384 = NULL;
 
             /* SHA-512 */
         } else if (!strncmp(ctn->fingerprint, "06", 2)) {
@@ -452,7 +447,6 @@ nc_server_tls_cert_to_name(struct nc_ctn *ctn, void *cert_chain, char **username
                 fingerprint_match = 1;
             }
             free(digest_sha512);
-            digest_sha512 = NULL;
 
             /* unknown */
         } else {