The 'if' in chars_in_buffer() is misleadingly inverted. And since the
only difference is the head used for computation, cache the head using
ternary operator. And use that in return directly.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx>
---
drivers/tty/n_tty.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 369f5dd9cc4b..e722065b2db4 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -219,13 +219,9 @@ static void n_tty_kick_worker(const struct tty_struct *tty)
static ssize_t chars_in_buffer(const struct tty_struct *tty)
{
const struct n_tty_data *ldata = tty->disc_data;
- ssize_t n = 0;
+ size_t head = ldata->icanon ? ldata->canon_head : ldata->commit_head;
- if (!ldata->icanon)
- n = ldata->commit_head - ldata->read_tail;
- else
- n = ldata->canon_head - ldata->read_tail;
- return n;
+ return head - ldata->read_tail;
}
/**
--
2.42.0
