From 94a6309b435eb0470d2801ad90b85bab7e556f17 Mon Sep 17 00:00:00 2001
From: brooks <brooks@FreeBSD.org>
Date: Thu, 15 Mar 2018 16:37:43 +0000
Subject: [PATCH] Restore the behavior of returning the total number of units
 by unconditionally incrementing i in the loop;

Reported by:	cem
MFC with:	r330880
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D14685
---
 sys/dev/md/md.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/dev/md/md.c b/sys/dev/md/md.c
index 1f8d3b74447d..1b91f60825d2 100644
--- a/sys/dev/md/md.c
+++ b/sys/dev/md/md.c
@@ -1765,7 +1765,8 @@ xmdctlioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread
 		i = 1;
 		LIST_FOREACH(sc, &md_softc_list, list) {
 			if (i < MDNPAD - 1)
-				mdio->md_pad[i++] = sc->unit;
+				mdio->md_pad[i] = sc->unit;
+			i++;
 		}
 		mdio->md_pad[MIN(i, MDNPAD - 1)] = -1;
 		mdio->md_pad[0] = i - 1;