From 96f9c09e35b2ae08e2f0473ffbdc178e73d84a31 Mon Sep 17 00:00:00 2001
From: Klaas Freitag <freitag@owncloud.com>
Date: Tue, 22 Jan 2013 16:48:36 +0100
Subject: [PATCH] Fix a crash for the case that csync_init fails.

---
 src/vio/csync_vio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/vio/csync_vio.c b/src/vio/csync_vio.c
index 01910b74e4..946552b7db 100644
--- a/src/vio/csync_vio.c
+++ b/src/vio/csync_vio.c
@@ -661,7 +661,8 @@ char *csync_vio_get_error_string(CSYNC *ctx)
     if(ctx->error_string) {
         return ctx->error_string;
     }
-    if(VIO_METHOD_HAS_FUNC(ctx->module.method, get_error_string)) {
+    if(ctx && ctx->module.method &&
+       VIO_METHOD_HAS_FUNC(ctx->module.method, get_error_string)) {
         return ctx->module.method->get_error_string();
     }
     return NULL;