From e022805f1d908cd9da8701db99a8e8ffd97c5519 Mon Sep 17 00:00:00 2001
From: Zdenek Kabelac <zkabelac@redhat.com>
Date: Tue, 4 Jul 2023 22:46:50 +0200
Subject: [PATCH] pool: do not pass empty string in callback

When preparing cmdline to executing dmpd tool, avoid adding
empty string ("") on such line.
---
 lib/activate/dev_manager.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/activate/dev_manager.c b/lib/activate/dev_manager.c
index 1f4d7c98b..d75df1d78 100644
--- a/lib/activate/dev_manager.c
+++ b/lib/activate/dev_manager.c
@@ -2529,7 +2529,8 @@ static int _pool_callback(struct dm_tree_node *node,
 				  data->global);
 			return 0;
 		}
-		argv[++args] = cv->v.str;
+		if (cv->v.str[0])
+			argv[++args] = cv->v.str;
 	}
 
 	if (args == 16) {