From: NeilBrown <neilb@suse.de>
Date: Mon, 25 Nov 2013 00:12:43 +0000 (+1100)
Subject: md/raid5: fix new memory-reference bug in alloc_thread_groups.
X-Git-Tag: v3.13-rc2~11^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0c775d5208284700de423e6746259da54a42e1f5;p=profile%2Fivi%2Fkernel-x86-ivi.git

md/raid5: fix new memory-reference bug in alloc_thread_groups.

In alloc_thread_groups, worker_groups is a pointer to an array,
not an array of pointers.
So
   worker_groups[i]
is wrong.  It should be
   &(*worker_groups)[i]

Found-by: coverity
Fixes: 60aaf9338545
Reported-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 47da0af..676d8b7 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5471,7 +5471,7 @@ static int alloc_thread_groups(struct r5conf *conf, int cnt,
 	for (i = 0; i < *group_cnt; i++) {
 		struct r5worker_group *group;
 
-		group = worker_groups[i];
+		group = &(*worker_groups)[i];
 		INIT_LIST_HEAD(&group->handle_list);
 		group->conf = conf;
 		group->workers = workers + i * cnt;