2007-05-24 12:28:33

by Jiri Slaby

Subject: [PATCH 1/1] Char: n_hdlc, allow RESTARTSYS retval of tty write

n_hdlc, allow RESTARTSYS retval of tty write

Cc: Paul Fulghum <[email protected]>
Signed-off-by: Jiri Slaby <[email protected]>

---
commit 119ce83eb190c70d50ed7558c7b67b400ea00ec7
tree d334650d032ded74085a6951c0a1d3e3268fb7db
parent 221eebee5eedfa7c2463dcbfb545b92595512310
author Jiri Slaby <[email protected]> Wed, 23 May 2007 17:55:46 +0200
committer Jiri Slaby <[email protected]> Wed, 23 May 2007 17:55:46 +0200

drivers/char/n_hdlc.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/char/n_hdlc.c b/drivers/char/n_hdlc.c
index 37f7d34..e8332f3 100644
--- a/drivers/char/n_hdlc.c
+++ b/drivers/char/n_hdlc.c
@@ -400,7 +400,12 @@ static void n_hdlc_send_frames(struct n_hdlc *n_hdlc, struct tty_struct *tty)
/* Send the next block of data to device */
tty->flags |= (1 << TTY_DO_WRITE_WAKEUP);
actual = tty->driver->write(tty, tbuf->buf, tbuf->count);
-
+
+ /* rollback was possible and has been done */
+ if (actual == -ERESTARTSYS) {
+ n_hdlc->tbuf = tbuf;
+ break;
+ }
/* if transmit error, throw frame away by */
/* pretending it was accepted by driver */
if (actual < 0)

2007-05-24 15:10:28

by Paul Fulghum

Subject: Re: [PATCH 1/1] Char: n_hdlc, allow RESTARTSYS retval of tty write

On Thu, 2007-05-24 at 14:28 +0200, Jiri Slaby wrote:
> n_hdlc, allow RESTARTSYS retval of tty write
>
> Cc: Paul Fulghum <[email protected]>
> Signed-off-by: Jiri Slaby <[email protected]>
>

Acked-by: Paul Fulghum <[email protected]>

--
Paul Fulghum
Microgate Systems, Ltd