diff options
| -rw-r--r-- | drivers/tty/n_tty.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 59f3f10f37f3..7f15b269cf3e 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -656,8 +656,7 @@ static size_t __process_echoes(struct tty_struct *tty) old_space = space = tty_write_room(tty); tail = ldata->echo_tail; - nr = ldata->echo_commit - ldata->echo_tail; - while (nr > 0) { + while (ldata->echo_commit != tail) { c = echo_buf(ldata, tail); if (c == ECHO_OP_START) { unsigned char op; @@ -701,20 +700,17 @@ static size_t __process_echoes(struct tty_struct *tty) ldata->column--; } tail += 3; - nr -= 3; break; case ECHO_OP_SET_CANON_COL: ldata->canon_column = ldata->column; tail += 2; - nr -= 2; break; case ECHO_OP_MOVE_BACK_COL: if (ldata->column > 0) ldata->column--; tail += 2; - nr -= 2; break; case ECHO_OP_START: @@ -727,7 +723,6 @@ static size_t __process_echoes(struct tty_struct *tty) ldata->column++; space--; tail += 2; - nr -= 2; break; default: @@ -749,7 +744,6 @@ static size_t __process_echoes(struct tty_struct *tty) ldata->column += 2; space -= 2; tail += 2; - nr -= 2; } if (no_space_left) @@ -767,7 +761,6 @@ static size_t __process_echoes(struct tty_struct *tty) space -= 1; } tail += 1; - nr -= 1; } } |