msg: add a timeout to ping_monitor

Though it should never bee needed, having a timeout in ping_monitor is
a sensible safeguard.

Signed-off-by: Neil Brown <neilb@suse.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/msg.c b/msg.c
index 123c0e55..78fd7f7e 100644
--- a/msg.c
+++ b/msg.c
@@ -173,11 +173,11 @@ int ping_monitor(char *devname)
 		return sfd;
 
 	/* try to ping existing socket */
-	if (ack(sfd, 0) != 0)
+	if (ack(sfd, 20) != 0)
 		err = -1;
 
 	/* check the reply */
-	if (!err && wait_reply(sfd, 0) != 0)
+	if (!err && wait_reply(sfd, 20) != 0)
 		err = -1;
 
 	close(sfd);