From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 21 Apr 2014 02:55:49 +0000 (+0800)
Subject: tipc: make media_ptr pointed netdevice valid
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~36^2~348^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f1c8d8cb82113ea6f41d2774127d3d08a4ca8d46;p=pandora-kernel.git

tipc: make media_ptr pointed netdevice valid

The 'media_ptr' pointer in bearer structure which points to network
device, is protected by RCU. So, before netdevice is released,
synchronize_net() should be involved to prevent no any user of
the netdevice on read side from accessing it after it is freed.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Tested-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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