ppp_async kfree patch

["Gilles Espinasse" <g.esp@xxxxxxx>]

It has been reported in this thread
https://sourceforge.net/tracker/index.php?func=detail&aid=1678777&group_id=40604&atid=428519

that a one line patch on ppp_async avoid crash and reboot

This happen with hight speed connection and usbserial using
http://www.junxion.com/opensource/linux_highspeed_usbserial.html patch

Here is the patch against 2.4.34 a few lines after  We have finished the
packet.
Code is the same on 2.6.22 and look not have been changed until 2.6.23.rc3

--- linux-2.4.34/drivers/net/ppp_async.c.old 2007-06-30 17:56:40.000000000
-0700
+++ linux-2.4.34/drivers/net/ppp_async.c 2007-06-30 17:57:07.000000000
-0700
@@ -624,7 +624,7 @@
  *buf++ = PPP_FLAG;
  ap->olim = buf;

- kfree_skb(ap->tpkt);
+ dev_kfree_skb_any(ap->tpkt);
  ap->tpkt = 0;
  return 1;
 }

Comment welcome.

Gilles

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