From e6dd89da86813679fae44e472ea470a943f133e2 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Wed, 19 Jun 2013 11:39:14 +1000
Subject: [PATCH] Manage: allow "--stop" on kernel names.

e.g.
   mdadm --stop md4

This works even if udev has become confused or killed.

Signed-off-by: NeilBrown <neilb@suse.de>
---
 mdadm.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/mdadm.c b/mdadm.c
index fe6c2fa..37360bd 100644
--- a/mdadm.c
+++ b/mdadm.c
@@ -1803,7 +1803,13 @@ static int misc_list(struct mddev_dev *devlist,
 					       (dv == devlist && dv->next == NULL));
 			continue;
 		}
-		mdfd = open_mddev(dv->devname, 1);
+		if (dv->devname[0] == '/')
+			mdfd = open_mddev(dv->devname, 1);
+		else {
+			mdfd = open_dev(dv->devname);
+			if (mdfd < 0)
+				pr_err("Cannot open %s\n", dv->devname);
+		}
 		if (mdfd>=0) {
 			switch(dv->disposition) {
 			case 'R':