Merge pull request #6995 from gojimmypi/PR-var-init

Initialize variables to appease Espressif compiler

Author: JacobBarthelmeh

src/ssl.c

@@ -30123,7 +30123,7 @@ static int set_curves_list(WOLFSSL* ssl, WOLFSSL_CTX *ctx, const char* names)
     char name[MAX_CURVE_NAME_SZ];
     byte groups_len = 0;
 #ifdef WOLFSSL_SMALL_STACK
-    void *heap = ssl? ssl->heap : ctx ? ctx->heap : NULL;
+    void *heap = ssl? ssl->heap : ctx ? ctx->heap : NULL; (void)heap;
     int *groups;
 #else
     int groups[WOLFSSL_MAX_GROUP_COUNT];

src/ssl_crypto.c

@@ -1972,7 +1972,7 @@ unsigned char* wolfSSL_HMAC(const WOLFSSL_EVP_MD* evp_md, const void* key,
     unsigned char* ret = NULL;
     int rc = 0;
     int type = 0;
-    int hmacLen;
+    int hmacLen = 0;
 #ifdef WOLFSSL_SMALL_STACK
     Hmac* hmac = NULL;
 #else