diff options
| -rw-r--r-- | drivers/tty/n_tty.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index e917faa0b84c..6a112910c058 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -1965,8 +1965,7 @@ static bool copy_from_read_buf(const struct tty_struct *tty, u8 **kbp, size_t head = smp_load_acquire(&ldata->commit_head); size_t tail = MASK(ldata->read_tail); - n = min(head - ldata->read_tail, N_TTY_BUF_SIZE - tail); - n = min(*nr, n); + n = min3(head - ldata->read_tail, N_TTY_BUF_SIZE - tail, *nr); if (n) { u8 *from = read_buf_addr(ldata, tail); memcpy(*kbp, from, n); |