[PATCH 09/14] mdadm/mdstat: fix coverity issue CHECKED_RETURN

[Xiao Ni <xni@xxxxxxxxxx>]

It needs to check return values when functions return value.

Signed-off-by: Xiao Ni <xni@xxxxxxxxxx>
---
 mdstat.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/mdstat.c b/mdstat.c
index e233f094..930d59ee 100644
--- a/mdstat.c
+++ b/mdstat.c
@@ -146,8 +146,11 @@ struct mdstat_ent *mdstat_read(int hold, int start)
 		f = fopen("/proc/mdstat", "r");
 	if (f == NULL)
 		return NULL;
-	else
-		fcntl(fileno(f), F_SETFD, FD_CLOEXEC);
+
+	if (fcntl(fileno(f), F_SETFD, FD_CLOEXEC) < 0) {
+		fclose(f);
+		return NULL;
+	}
 
 	all = NULL;
 	end = &all;
@@ -281,7 +284,10 @@ struct mdstat_ent *mdstat_read(int hold, int start)
 	}
 	if (hold && mdstat_fd == -1) {
 		mdstat_fd = dup(fileno(f));
-		fcntl(mdstat_fd, F_SETFD, FD_CLOEXEC);
+		if (fcntl(mdstat_fd, F_SETFD, FD_CLOEXEC) < 0) {
+			fclose(f);
+			return NULL;
+		}
 	}
 	fclose(f);
 
-- 
2.41.0