-

diff --git a/src/crypto/tls/conn.go b/src/crypto/tls/conn.go
index 0377568..c989cd2 100644
--- a/src/crypto/tls/conn.go
+++ b/src/crypto/tls/conn.go
@@ -774,6 +774,9 @@ func (c *Conn) writeRecord(typ recordType, data []byte) (n int, err error) {
 		data = data[m:]
 	}
 	c.out.freeBlock(b)
+	if err != nil {
+		return err
+	}
 
 	if typ == recordTypeChangeCipherSpec {
 		err = c.out.changeCipherSpec()
diff --git a/src/crypto/tls/handshake_client.go b/src/crypto/tls/handshake_client.go
index 3c996ac..970ba56 100644
--- a/src/crypto/tls/handshake_client.go
+++ b/src/crypto/tls/handshake_client.go
@@ -144,7 +144,9 @@ NextCipherSuite:
 		}
 	}
 
-	c.writeRecord(recordTypeHandshake, hello.marshal())
+	if _, err := c.writeRecord(recordTypeHandshake, hello.marshal()); err != nil {
+		return err
+	}
 
 	msg, err := c.readHandshake()
 	if err != nil {