1 files changed, 5 insertions, 1 deletions
diff --git a/mdstat.c b/mdstat.c
index 2972cdf6..39628967 100644
--- a/mdstat.c
+++ b/mdstat.c
@@ -133,7 +133,11 @@ struct mdstat_ent *mdstat_read(int hold, int start)
 	int fd;
 
 	if (hold && mdstat_fd != -1) {
-		lseek(mdstat_fd, 0L, 0);
+		off_t offset = lseek(mdstat_fd, 0L, 0);
+		if (offset == (off_t)-1) {
+			mdstat_close();
+			return NULL;
+		}
 		fd = dup(mdstat_fd);
 		if (fd >= 0)
 			f = fdopen(fd, "r");