From: Paul Bolle 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: firefly_0821_release~15788^2~42 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=bae584316045011ce3376816585a305d2b9b76f2;p=firefly-linux-kernel-4.4.55.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 Signed-off-by: David S. Miller --- diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c index 7c5f97033b9f..de6be7181f07 100644 --- a/drivers/isdn/i4l/isdn_net.c +++ b/drivers/isdn/i4l/isdn_net.c @@ -292,7 +292,9 @@ isdn_net_unbind_channel(isdn_net_local * lp) lp->dialstate = 0; dev->rx_netdev[isdn_dc2minor(lp->isdn_device, lp->isdn_channel)] = NULL; dev->st_netdev[isdn_dc2minor(lp->isdn_device, lp->isdn_channel)] = NULL; - isdn_free_channel(lp->isdn_device, lp->isdn_channel, ISDN_USAGE_NET); + if (lp->isdn_device != -1 && lp->isdn_channel != -1) + isdn_free_channel(lp->isdn_device, lp->isdn_channel, + ISDN_USAGE_NET); lp->flags &= ~ISDN_NET_CONNECTED; lp->isdn_device = -1; lp->isdn_channel = -1;