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path: root/drivers/char/hvcs.c
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Diffstat (limited to 'drivers/char/hvcs.c')
-rw-r--r--drivers/char/hvcs.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/char/hvcs.c b/drivers/char/hvcs.c
index 53dc77c760fc..831eb4e8d9d3 100644
--- a/drivers/char/hvcs.c
+++ b/drivers/char/hvcs.c
@@ -456,12 +456,11 @@ static int hvcs_io(struct hvcs_struct *hvcsd)
/* remove the read masks */
hvcsd->todo_mask &= ~(HVCS_READ_MASK);
- if ((tty->flip.count + HVCS_BUFF_LEN) < TTY_FLIPBUF_SIZE) {
+ if (tty_buffer_request_room(tty, HVCS_BUFF_LEN) >= HVCS_BUFF_LEN) {
got = hvc_get_chars(unit_address,
&buf[0],
HVCS_BUFF_LEN);
- for (i=0;got && i<got;i++)
- tty_insert_flip_char(tty, buf[i], TTY_NORMAL);
+ tty_insert_flip_string(tty, buf, got);
}
/* Give the TTY time to process the data we just sent. */
@@ -469,10 +468,9 @@ static int hvcs_io(struct hvcs_struct *hvcsd)
hvcsd->todo_mask |= HVCS_QUICK_READ;
spin_unlock_irqrestore(&hvcsd->lock, flags);
- if (tty->flip.count) {
- /* This is synch because tty->low_latency == 1 */
+ /* This is synch because tty->low_latency == 1 */
+ if(got)
tty_flip_buffer_push(tty);
- }
if (!got) {
/* Do this _after_ the flip_buffer_push */