diff options
Diffstat (limited to 'drivers/s390/char/sclp_vt220.c')
| -rw-r--r-- | drivers/s390/char/sclp_vt220.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c index 06bd85824d7b..9e02625c82cf 100644 --- a/drivers/s390/char/sclp_vt220.c +++ b/drivers/s390/char/sclp_vt220.c @@ -16,6 +16,7 @@ #include <linux/kernel.h> #include <linux/tty.h> #include <linux/tty_driver.h> +#include <linux/tty_flip.h> #include <linux/sched.h> #include <linux/errno.h> #include <linux/mm.h> @@ -482,16 +483,7 @@ sclp_vt220_receiver_fn(struct evbuf_header *evbuf) /* Send input to line discipline */ buffer++; count--; - /* Prevent buffer overrun by discarding input. Note that - * because buffer_push works asynchronously, we cannot wait - * for the buffer to be emptied. */ - if (count + sclp_vt220_tty->flip.count > TTY_FLIPBUF_SIZE) - count = TTY_FLIPBUF_SIZE - sclp_vt220_tty->flip.count; - memcpy(sclp_vt220_tty->flip.char_buf_ptr, buffer, count); - memset(sclp_vt220_tty->flip.flag_buf_ptr, TTY_NORMAL, count); - sclp_vt220_tty->flip.char_buf_ptr += count; - sclp_vt220_tty->flip.flag_buf_ptr += count; - sclp_vt220_tty->flip.count += count; + tty_insert_flip_string(sclp_vt220_tty, buffer, count); tty_flip_buffer_push(sclp_vt220_tty); break; } |