From: Eric Dumazet <edumazet@google.com>
Date: Tue, 2 Dec 2014 12:30:59 +0000 (-0800)
Subject: net: mvneta: fix race condition in mvneta_tx()
X-Git-Tag: omap-for-v3.19/fixes-rc1~125^2~10^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5f478b41033606d325e420df693162e2524c2b94;p=pandora-kernel.git

net: mvneta: fix race condition in mvneta_tx()

mvneta_tx() dereferences skb to get skb->len too late,
as hardware might have completed the transmit and TX completion
could have freed the skb from another cpu.

Fixes: 71f6d1b31fb1 ("net: mvneta: replace Tx timer with a real interrupt")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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