From: Jarek Poplawski <jarkao2@gmail.com>
Date: Mon, 18 Feb 2008 06:31:19 +0000 (-0800)
Subject: [AX25] ax25_out: check skb for NULL in ax25_kick()
X-Git-Tag: v2.6.25-rc3~126^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f47b7257c7368698eabff6fd7b340071932af640;p=pandora-kernel.git

[AX25] ax25_out: check skb for NULL in ax25_kick()

According to some OOPS reports ax25_kick tries to clone NULL skbs
sometimes. It looks like a race with ax25_clear_queues(). Probably
there is no need to add more than a simple check for this yet.
Another report suggested there are probably also cases where ax25
->paclen == 0 can happen in ax25_output(); this wasn't confirmed
during testing but let's leave this debugging check for some time.

Reported-and-tested-by: Jann Traschewski <jann@gmx.de>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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