From f28e9ae9be922e53f65740cf0598a8a2177c1b66 Mon Sep 17 00:00:00 2001
From: Marek Schimara <Marek.Schimara@bull.net>
Date: Fri, 17 Jun 2016 09:45:28 +0200
Subject: [PATCH] src/rrd_open.c: fix Coverity CID#13676 Dereference before
 null check

        CWE-476 / https://cwe.mitre.org/data/definitions/476.html
---
 src/rrd_open.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/rrd_open.c b/src/rrd_open.c
index 3bb27266..ec4ae2e0 100644
--- a/src/rrd_open.c
+++ b/src/rrd_open.c
@@ -586,7 +586,7 @@ void rrd_dontneed(
     rrd_file_t *rrd_file,
     rrd_t *rrd)
 {
-    rrd_simple_file_t *rrd_simple_file = (rrd_simple_file_t *)rrd_file->pvt;
+    rrd_simple_file_t *rrd_simple_file;
 #if defined USE_MADVISE || defined HAVE_POSIX_FADVISE
     size_t dontneed_start;
     size_t rra_start;
@@ -600,6 +600,7 @@ void rrd_dontneed(
 #endif
 	    return;
     }
+    rrd_simple_file = (rrd_simple_file_t *)rrd_file->pvt;
 
 #if defined DEBUG && DEBUG > 1
     mincore_print(rrd_file, "before");
-- 
2.47.2