diff options
author | Otavio Salvador <otavio@ossystems.com.br> | 2019-12-19 00:14:33 -0300 |
---|---|---|
committer | GitHub <noreply@github.com> | 2019-12-19 00:14:33 -0300 |
commit | fa8a03bec68d9ef89da72277bd3501ed3daa6217 (patch) | |
tree | 3d3218332bcb34cb0afa01d6ad996058a3dbcb77 /drivers/tty/n_tty.c | |
parent | 6b774eec1f9d3064e9b33634dfa99d5666d0a73a (diff) | |
parent | 1ddf624b0b268fdc0b80b1de618b98f8d117afea (diff) |
Merge pull request #55 from toradex/4.14-2.0.x-imx
4.14 2.0.x imx
Diffstat (limited to 'drivers/tty/n_tty.c')
-rw-r--r-- | drivers/tty/n_tty.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 904fc9c37fde..8214b0326b3a 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -1704,7 +1704,7 @@ n_tty_receive_buf_common(struct tty_struct *tty, const unsigned char *cp, down_read(&tty->termios_rwsem); - while (1) { + do { /* * When PARMRK is set, each input char may take up to 3 chars * in the read buf; reduce the buffer space avail by 3x @@ -1746,7 +1746,7 @@ n_tty_receive_buf_common(struct tty_struct *tty, const unsigned char *cp, fp += n; count -= n; rcvd += n; - } + } while (!test_bit(TTY_LDISC_CHANGING, &tty->flags)); tty->receive_room = room; @@ -2213,7 +2213,7 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file, break; if (!timeout) break; - if (file->f_flags & O_NONBLOCK) { + if (tty_io_nonblock(tty, file)) { retval = -EAGAIN; break; } @@ -2367,7 +2367,7 @@ static ssize_t n_tty_write(struct tty_struct *tty, struct file *file, } if (!nr) break; - if (file->f_flags & O_NONBLOCK) { + if (tty_io_nonblock(tty, file)) { retval = -EAGAIN; break; } |