From: Paul Bolle <pebolle@tiscali.nl>
Date: Wed, 14 Jan 2009 22:41:00 +0000 (-0800)
Subject: i4l: do not print a warning when shutting down an i4l ppp interface
X-Git-Tag: v2.6.29-rc2~11^2~40
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bae584316045011ce3376816585a305d2b9b76f2;p=pandora-kernel.git

i4l: do not print a warning when shutting down an i4l ppp interface

When an i4l ppp interface is shut down (e.g. with /sbin/ifdown ippp0) a
scary warning is logged:

    isdn_free_channel: called with invalid drv(-1) or channel(-1)

This warning is caused by isdn_net_unbind_channel(), which always calls
isdn_free_channel() even if isdn_net_local->isdn_device and
isdn_net_local->isdn_channel are (still) in a perfectly acceptable
default state, so let's not do that.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
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