Moved int pos declaration at the top the func

src/bio.c

@@ -1441,9 +1441,10 @@ int wolfSSL_BIO_seek(WOLFSSL_BIO *bio, int ofs)
 }
 int wolfSSL_BIO_tell(WOLFSSL_BIO* bio)
 {
-    WOLFSSL_ENTER("wolfSSL_BIO_tell");
     int pos;
 
+    WOLFSSL_ENTER("wolfSSL_BIO_tell");
+
     if (bio == NULL) {
         return -1;
     }