Tidy up CRYPTO_EX_DATA structures.

ssl/ssl_cert.c

diff --git a/ssl/ssl_cert.c b/ssl/ssl_cert.c
index 3eda14a..48f247c 100644
--- a/ssl/ssl_cert.c
+++ b/ssl/ssl_cert.c
@@ -431,8 +431,7 @@
 	X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk);
 	if (SSL_get_verify_depth(s) >= 0)
 		X509_STORE_CTX_set_depth(&ctx, SSL_get_verify_depth(s));
-	X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),
-		(char *)s);
+	X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),s);
 	/* We need to set the verify purpose. The purpose can be determined by
 	 * the context: if its a server it will verify SSL client certificates
 	 * or vice versa.