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path: root/drivers/s390/char/tty3270.c
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Diffstat (limited to 'drivers/s390/char/tty3270.c')
-rw-r--r--drivers/s390/char/tty3270.c15
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index c1f2adefad4..5043150019a 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -965,8 +965,7 @@ tty3270_write_room(struct tty_struct *tty)
* Insert character into the screen at the current position with the
* current color and highlight. This function does NOT do cursor movement.
*/
-static int
-tty3270_put_character(struct tty3270 *tp, char ch)
+static void tty3270_put_character(struct tty3270 *tp, char ch)
{
struct tty3270_line *line;
struct tty3270_cell *cell;
@@ -986,7 +985,6 @@ tty3270_put_character(struct tty3270 *tp, char ch)
cell->character = tp->view.ascebc[(unsigned int) ch];
cell->highlight = tp->highlight;
cell->f_color = tp->f_color;
- return 1;
}
/*
@@ -1612,16 +1610,15 @@ tty3270_write(struct tty_struct * tty,
/*
* Put single characters to the ttys character buffer
*/
-static void
-tty3270_put_char(struct tty_struct *tty, unsigned char ch)
+static int tty3270_put_char(struct tty_struct *tty, unsigned char ch)
{
struct tty3270 *tp;
tp = tty->driver_data;
- if (!tp)
- return;
- if (tp->char_count < TTY3270_CHAR_BUF_SIZE)
- tp->char_buf[tp->char_count++] = ch;
+ if (!tp || tp->char_count >= TTY3270_CHAR_BUF_SIZE)
+ return 0;
+ tp->char_buf[tp->char_count++] = ch;
+ return 1;
}
/*