[PATCH] md: remove slashes from disk names when creation dev names in sysfs

e.g. The sx8 driver uses names like sx8/0.

This would make a md component dev name like

   /sys/block/md0/md/dev-sx8/0

which is not allowed.  So we change the '/' to '!' just like
fs/partitions/check.c(register_disk) does.
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/md/md.c

@@ -1238,6 +1238,7 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev)
 	mdk_rdev_t *same_pdev;
 	char b[BDEVNAME_SIZE], b2[BDEVNAME_SIZE];
 	struct kobject *ko;
+	char *s;
 
 	if (rdev->mddev) {
 		MD_BUG();
@@ -1277,6 +1278,8 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev)
 	bdevname(rdev->bdev,b);
 	if (kobject_set_name(&rdev->kobj, "dev-%s", b) < 0)
 		return -ENOMEM;
+	while ( (s=strchr(rdev->kobj.k_name, '/')) != NULL)
+		*s = '!';
 			
 	list_add(&rdev->same_set, &mddev->disks);
 	rdev->mddev = mddev;