It needs to check return values when functions have return value.
Signed-off-by: Xiao Ni <xni@xxxxxxxxxx>
---
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
