From 6b5597218330b3702cf2b86b2163d5fe769b76a2 Mon Sep 17 00:00:00 2001
From: Vincent Glize <vincentglize@hotmail.fr>
Date: Sat, 3 Mar 2018 13:18:28 +0100
Subject: [PATCH] Fix error when keyblock is nil (#394)

---
 src/github.com/matrix-org/dendrite/common/config/config.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/github.com/matrix-org/dendrite/common/config/config.go b/src/github.com/matrix-org/dendrite/common/config/config.go
index 1e2374a84..ad8842071 100644
--- a/src/github.com/matrix-org/dendrite/common/config/config.go
+++ b/src/github.com/matrix-org/dendrite/common/config/config.go
@@ -525,6 +525,9 @@ func readKeyPEM(path string, data []byte) (gomatrixserverlib.KeyID, ed25519.Priv
 		if data == nil {
 			return "", nil, fmt.Errorf("no matrix private key PEM data in %q", path)
 		}
+		if keyBlock == nil {
+			return "", nil, fmt.Errorf("keyBlock is nil %q", path)
+		}
 		if keyBlock.Type == "MATRIX PRIVATE KEY" {
 			keyID := keyBlock.Headers["Key-ID"]
 			if keyID == "" {