From: <xeb@mail.ru>

Adapted from  http://bugzilla.kernel.org/show_bug.cgi?id=6530

Reschedule the async Tx tasklet if the transmit queue was full.

Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 drivers/net/ppp_async.c |    2 ++
 1 files changed, 2 insertions(+)

diff -puN drivers/net/ppp_async.c~ppp_async-hang-fix drivers/net/ppp_async.c
--- devel/drivers/net/ppp_async.c~ppp_async-hang-fix	2006-05-10 02:28:15.000000000 -0700
+++ devel-akpm/drivers/net/ppp_async.c	2006-05-10 02:28:53.000000000 -0700
@@ -516,6 +516,8 @@ static void ppp_async_process(unsigned l
 	/* try to push more stuff out */
 	if (test_bit(XMIT_WAKEUP, &ap->xmit_flags) && ppp_async_push(ap))
 		ppp_output_wakeup(&ap->chan);
+	else if (test_bit(XMIT_FULL, &ap->xmit_flags))
+		ppp_asynctty_wakeup(ap->tty);
 }
 
 /*
_