i4l: do not print a warning when shutting down an i4l ppp interface
commitbae584316045011ce3376816585a305d2b9b76f2
authorPaul Bolle <pebolle@tiscali.nl>
Wed, 14 Jan 2009 22:41:00 +0000 (14 14:41 -0800)
committerDavid S. Miller <davem@davemloft.net>
Wed, 14 Jan 2009 22:41:00 +0000 (14 14:41 -0800)
tree9d6dedb678562d0015a2947212cc6100a46b4819
parentf0d44ae310bc8eb0b6694e257015d8b24e1a357c
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>
drivers/isdn/i4l/isdn_net.c