From: Milan Broz <mbroz@redhat.com>
Date: Mon, 26 Jun 2006 07:27:27 +0000 (-0700)
Subject: [PATCH] dm table: get_target: fix last index
X-Git-Tag: v2.6.18-rc1~660
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=143535396c7ebd9395a931a000b3963f457712b8;p=linux-2.6

[PATCH] dm table: get_target: fix last index

The table is indexed from 0, so an index equal to t->num_targets should be
rejected.

(There is no code in the current tree that would exercise this bug.)

Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 8f56a54cf0..b6183eda81 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -802,7 +802,7 @@ sector_t dm_table_get_size(struct dm_table *t)
 
 struct dm_target *dm_table_get_target(struct dm_table *t, unsigned int index)
 {
-	if (index > t->num_targets)
+	if (index >= t->num_targets)
 		return NULL;
 
 	return t->targets + index;