From dfc083d8d66cf3286908e9c7fc0c53bd1e5d4967 Mon Sep 17 00:00:00 2001
From: Zdenek Kabelac <zkabelac@redhat.com>
Date: Sat, 1 Apr 2017 12:05:49 +0200
Subject: [PATCH] dmfilemapd: keep 1 byte for \0

Coverity noticed the buffer should have 1 byte for \0.
---
 daemons/dmfilemapd/dmfilemapd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/daemons/dmfilemapd/dmfilemapd.c b/daemons/dmfilemapd/dmfilemapd.c
index 88f8af2ef..d232a838a 100644
--- a/daemons/dmfilemapd/dmfilemapd.c
+++ b/daemons/dmfilemapd/dmfilemapd.c
@@ -589,7 +589,7 @@ check_unlinked:
 		log_error("Could not format pid path.");
 		return 0;
 	}
-	if ((len = readlink(path_buf, link_buf, sizeof(link_buf))) < 0) {
+	if ((len = readlink(path_buf, link_buf, sizeof(link_buf) - 1)) < 0) {
 		log_error("readlink failed for " DEFAULT_PROC_DIR "/%d/fd/%d.",
 			  getpid(), fm->fd);
 		return 0;