[CRIU] [PATCH] page-server: Add return check

[Pavel Tikhomirov]

On ubuntu this don't compile if no check.

Signed-off-by: Pavel Tikhomirov <snorcht at gmail.com>
---
 page-xfer.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/page-xfer.c b/page-xfer.c
index 93b5815..4efa20c 100644
--- a/page-xfer.c
+++ b/page-xfer.c
@@ -224,7 +224,10 @@ int cr_page_server(bool daemon_mode)
 	}
 
 	if (daemon_mode)
-		daemon(0, 0);
+		if(daemon(0, 0) == -1){
+			pr_perror("Can't run in the background");
+			return -errno;
+		}
 
 	ask = accept(sk, (struct sockaddr *)&caddr, &clen);
 	if (ask < 0)
-- 
1.7.9.5