linux-kernel - [ 54/95] netconsole: remove a redundant netconsole_target

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Date:	Sun, 09 Sep 2012 23:42:44 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Amerigo Wang <amwang@...hat.com>,
	David Miller <davem@...emloft.net>
Subject: [ 54/95] netconsole: remove a redundant netconsole_target_put()

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Amerigo Wang <amwang@...hat.com>

commit 72d3eb13b5c0abe7d63efac41f39c5b644c7bbaa upstream.

This netconsole_target_put() is obviously redundant, and it
causes a kernel segfault when removing a bridge device which has
netconsole running on it.

This is caused by:

	commit 8d8fc29d02a33e4bd5f4fa47823c1fd386346093
	Author: Amerigo Wang <amwang@...hat.com>
	Date:   Thu May 19 21:39:10 2011 +0000

	    netpoll: disable netpoll when enslave a device

Cc: David Miller <davem@...emloft.net>
Signed-off-by: Cong Wang <amwang@...hat.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/net/netconsole.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -652,7 +652,6 @@ static int netconsole_netdev_event(struc
 							  flags);
 					dev_put(nt->np.dev);
 					nt->np.dev = NULL;
-					netconsole_target_put(nt);
 				}
 				nt->enabled = 0;
 				stopped = true;


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