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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-01 10:40:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-01 10:40:51 -0800 |
| commit | e8ed34ced175f2670f86c0bebc41af1628952b92 (patch) | |
| tree | fa4ec15fa5a0440eb4e32c83da4ac66dd43f64c4 /drivers/char/tty_port.c | |
| parent | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus (diff) | |
| parent | tty/of_serial: add missing ns16550a id (diff) | |
| download | linux-dev-e8ed34ced175f2670f86c0bebc41af1628952b92.tar.xz linux-dev-e8ed34ced175f2670f86c0bebc41af1628952b92.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
tty/of_serial: add missing ns16550a id
bcm63xx_uart: Fix serial driver compile breakage.
tty_port: handle the nonblocking open of a dead port corner case
Diffstat (limited to 'drivers/char/tty_port.c')
| -rw-r--r-- | drivers/char/tty_port.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/char/tty_port.c b/drivers/char/tty_port.c index 2e8552dc5eda..c63f3d33914a 100644 --- a/drivers/char/tty_port.c +++ b/drivers/char/tty_port.c @@ -219,8 +219,11 @@ int tty_port_block_til_ready(struct tty_port *port, /* if non-blocking mode is set we can pass directly to open unless the port has just hung up or is in another error state */ - if ((filp->f_flags & O_NONBLOCK) || - (tty->flags & (1 << TTY_IO_ERROR))) { + if (tty->flags & (1 << TTY_IO_ERROR)) { + port->flags |= ASYNC_NORMAL_ACTIVE; + return 0; + } + if (filp->f_flags & O_NONBLOCK) { /* Indicate we are open */ if (tty->termios->c_cflag & CBAUD) tty_port_raise_dtr_rts(port); |