From: Akinbou Mita <akinobu.mita@gmail.com>
Date: Mon, 26 Mar 2007 21:43:10 +0000 (+0200)
Subject: md: fix /proc/mdstat refcounting
X-Git-Tag: v2.6.16.46-rc1~23
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=25c72f37099c2f32e8e6c7311735e7a3a036b178;p=thirdparty%2Fkernel%2Fstable.git

md: fix /proc/mdstat refcounting

I have seen mdadm oops after successfully unloading md module.

This patch privents from unloading md module while
mdadm is polling /proc/mdstat.

Signed-off-by: Akinbou Mita <akinobu.mita@gmail.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
---

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 0471ebff482ff..1b1fae8b58b68 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -4325,6 +4325,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
 }
 
 static struct file_operations md_seq_fops = {
+	.owner		= THIS_MODULE,
 	.open           = md_seq_open,
 	.read           = seq_read,
 	.llseek         = seq_lseek,