From 26c58027fb9df068c927abe61336ff6364fe3d0e Mon Sep 17 00:00:00 2001
From: Zdenek Kabelac <zkabelac@redhat.com>
Date: Sat, 17 Mar 2018 13:53:12 +0100
Subject: [PATCH] coverity: validate descriptor

Since this function is called with 'fd == -1', but Coverity can't see
this path can't be visited with this argument, add explicit check for
valid descriptor.
---
 daemons/clvmd/clvmd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/daemons/clvmd/clvmd.c b/daemons/clvmd/clvmd.c
index e15a40a6d..829c5e5f8 100644
--- a/daemons/clvmd/clvmd.c
+++ b/daemons/clvmd/clvmd.c
@@ -1999,6 +1999,9 @@ static int send_message(void *buf, int msglen, const char *csid, int fd,
 		return clops->cluster_send_message(buf, msglen, csid, errtext);
 	}
 
+	if (fd < 0)
+		return 0;
+
 	/* Make sure it all goes */
 	for (ptr = 0; ptr < msglen;) {
 		if ((len = write(fd, (char*)buf + ptr, msglen - ptr)) <= 0) {