From: NeilBrown <neilb@suse.de>
Date: Wed, 8 Jun 2011 06:56:41 +0000 (+1000)
Subject: Grow: Add paranoid level checking to analyse_change.
X-Git-Tag: mdadm-3.2.2~61
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=90b60dfa48592e0118065060e91c8c498075a344;p=thirdparty%2Fmdadm.git

Grow: Add paranoid level checking to analyse_change.

Just in case array.level is ever something that we don't expect, make
sure we report an error clearly rather than get confused.

Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/Grow.c b/Grow.c
index 7a8ffdbc..ad5ccc45 100644
--- a/Grow.c
+++ b/Grow.c
@@ -929,6 +929,8 @@ char *analyse_change(struct mdinfo *info, struct reshape *re)
 		info->new_chunk = info->array.chunk_size;
 
 	switch (info->array.level) {
+	default:
+		return "Cannot understand this RAID level";
 	case 1:
 		/* RAID1 can convert to RAID1 with different disks, or
 		 * raid5 with 2 disks, or