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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[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)
-
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[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)
-
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the body of a message to [EMAIL PROTECTED]
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Please read the FAQ at http://www.tux.org/lkml/
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 - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
