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authorAlan Cox <alan@lxorguk.ukuu.org.uk>2008-04-30 00:53:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 08:29:45 -0700
commit978e595f88a1fba5869aa42a4af4fba36f33ecac (patch)
tree60848f49949c5b7b518621ee36cdc6d500244539 /drivers/char/pcmcia
parentac0e4b7d319bf284bb64bc7e1c051417386b34a4 (diff)
tty/serial: lay the foundations for the next set of reworks
- Stop drivers calling their own flush method indirectly, it obfuscates code and it will change soon anyway - A few more lock_kernel paths temporarily needed in some driver internal waiting code - Remove private put_char method that does a write call for one char - we have that anyway - Most but not yet all of the termios copy under lock fixing (some has other dependencies to follow) - Note a few locking bugs in drivers found in the process - Kill remaining [ab]users of TIOCG/SSOFTCAR in the driver, these must go to fix the termios locking Signed-off-by: Alan Cox <alan@redhat.com> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/pcmcia')
-rw-r--r--drivers/char/pcmcia/synclink_cs.c16
1 files changed, 2 insertions, 14 deletions
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 583356426dfb..45d8eb5de69f 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -503,20 +503,9 @@ static void* mgslpc_get_text_ptr(void)
* The wrappers maintain line discipline references
* while calling into the line discipline.
*
- * ldisc_flush_buffer - flush line discipline receive buffers
* ldisc_receive_buf - pass receive data to line discipline
*/
-static void ldisc_flush_buffer(struct tty_struct *tty)
-{
- struct tty_ldisc *ld = tty_ldisc_ref(tty);
- if (ld) {
- if (ld->flush_buffer)
- ld->flush_buffer(tty);
- tty_ldisc_deref(ld);
- }
-}
-
static void ldisc_receive_buf(struct tty_struct *tty,
const __u8 *data, char *flags, int count)
{
@@ -2467,10 +2456,9 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
if (info->flags & ASYNC_INITIALIZED)
mgslpc_wait_until_sent(tty, info->timeout);
- if (tty->driver->flush_buffer)
- tty->driver->flush_buffer(tty);
+ mgslpc_flush_buffer(tty);
- ldisc_flush_buffer(tty);
+ tty_ldisc_flush(tty);
shutdown(info);