[PATCH 05/14] mdadm/mdmon: fix coverity issue CHECKED_RETURN

[Xiao Ni <xni@redhat.com>]

It needs to check return values when functions have return value.

Signed-off-by: Xiao Ni <xni@redhat.com>
---
 mdmon.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/mdmon.c b/mdmon.c
index 5fdb5cdb..b6fe302e 100644
--- a/mdmon.c
+++ b/mdmon.c
@@ -199,7 +199,8 @@ static void try_kill_monitor(pid_t pid, char *devname, int sock)
 	 * clearing the non-blocking flag */
 	fl = fcntl(sock, F_GETFL, 0);
 	fl &= ~O_NONBLOCK;
-	fcntl(sock, F_SETFL, fl);
+	if (fcntl(sock, F_SETFL, fl) < 0)
+		return;
 	n = read(sock, buf, 100);
 
 	/* If there is I/O going on it might took some time to get to
@@ -249,7 +250,10 @@ static int make_control_sock(char *devname)
 	listen(sfd, 10);
 	fl = fcntl(sfd, F_GETFL, 0);
 	fl |= O_NONBLOCK;
-	fcntl(sfd, F_SETFL, fl);
+	if (fcntl(sfd, F_SETFL, fl) < 0) {
+		close_fd(&sfd);
+		return -1;
+	}
 	return sfd;
 }
 
-- 
2.41.0