[PATCH 2.5.72] ppp_async tty discipline module ref counting

[Stephen Hemminger <shemminger@xxxxxxxx>]

Change ppp_async to use the owner field to do the module reference counting
and eliminate the the MOD_INC/DEC calls.

diff -Nru a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c
--- a/drivers/net/ppp_async.c   Thu Jun 19 15:15:56 2003
+++ b/drivers/net/ppp_async.c   Thu Jun 19 15:15:56 2003
@@ -147,7 +147,6 @@
        struct asyncppp *ap;
        int err;
 
-       MOD_INC_USE_COUNT;
        err = -ENOMEM;
        ap = kmalloc(sizeof(*ap), GFP_KERNEL);
        if (ap == 0)
@@ -183,7 +182,6 @@
  out_free:
        kfree(ap);
  out:
-       MOD_DEC_USE_COUNT;
        return err;
 }
 
@@ -223,7 +221,6 @@
        if (ap->tpkt != 0)
                kfree_skb(ap->tpkt);
        kfree(ap);
-       MOD_DEC_USE_COUNT;
 }
 
 /*
@@ -351,6 +348,7 @@
 
 
 static struct tty_ldisc ppp_ldisc = {
+       .owner  = THIS_MODULE,
        .magic  = TTY_LDISC_MAGIC,
        .name   = "ppp",
        .open   = ppp_asynctty_open,