[PATCH 28/35] nozomi: simplify ntty_chars_in_buffer
From: Jiri Slaby <hidden>
Date: 2021-05-05 09:21:15
Also in:
lkml
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
ntty_chars_in_buffer is overly complicated. Simplify it by inverting the condition. Side FIXME: how can dc or port be NULL here? Signed-off-by: Jiri Slaby <redacted> --- drivers/tty/nozomi.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c
index 62c16731ccd8..5e0ddf22931e 100644
--- a/drivers/tty/nozomi.c
+++ b/drivers/tty/nozomi.c@@ -1780,16 +1780,11 @@ static unsigned int ntty_chars_in_buffer(struct tty_struct *tty) { struct port *port = tty->driver_data; struct nozomi *dc = get_dc_by_tty(tty); - s32 rval = 0; - if (unlikely(!dc || !port)) { - goto exit_in_buffer; - } - - rval = kfifo_len(&port->fifo_ul); + if (unlikely(!dc || !port)) + return 0; -exit_in_buffer: - return rval; + return kfifo_len(&port->fifo_ul); } static const struct tty_port_operations noz_tty_port_ops = {
--
2.31.1