Correct checking if file descriptors are valid

In some cases file descriptors equal to 0 are treated as invalid.
Fix it.

Signed-off-by: Mateusz Grzonka <mateusz.grzonka@intel.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/Assemble.c b/Assemble.c
index 20fd97b5..704b8293 100644
--- a/Assemble.c
+++ b/Assemble.c
@@ -569,8 +569,7 @@ static int select_devices(struct mddev_dev *devlist,
 				if (dfd < 0 ||
 				    st->ss->load_super(st, dfd, NULL))
 					tmpdev->used = 2;
-				if (dfd > 0)
-					close(dfd);
+				close_fd(&dfd);
 			}
 		}