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| author | Ingo Molnar <mingo@elte.hu> | 2012-02-07 08:59:29 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2012-02-07 08:59:29 (GMT) |
| commit | 290436c9c61ac983b1bd425da67242a4357c7701 (patch) | |
| tree | 35e1f189b62eb50515600ad607d7fb57fc547870 /drivers/tty/tty_port.c | |
| parent | 623ec991ce0e8cd5791bad656c162fa837635907 (diff) | |
| parent | 62aa2b537c6f5957afd98e29f96897419ed5ebab (diff) | |
| download | linux-fsl-qoriq-290436c9c61ac983b1bd425da67242a4357c7701.tar.xz | |
Merge tag 'v3.3-rc2' into perf/core
Linux 3.3-rc2
Pick up the latest fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/tty/tty_port.c')
| -rw-r--r-- | drivers/tty/tty_port.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index ef9dd62..bf6e238 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -227,7 +227,6 @@ int tty_port_block_til_ready(struct tty_port *port, int do_clocal = 0, retval; unsigned long flags; DEFINE_WAIT(wait); - int cd; /* block if port is in the process of being closed */ if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) { @@ -284,11 +283,14 @@ int tty_port_block_til_ready(struct tty_port *port, retval = -ERESTARTSYS; break; } - /* Probe the carrier. For devices with no carrier detect this - will always return true */ - cd = tty_port_carrier_raised(port); + /* + * Probe the carrier. For devices with no carrier detect + * tty_port_carrier_raised will always return true. + * Never ask drivers if CLOCAL is set, this causes troubles + * on some hardware. + */ if (!(port->flags & ASYNC_CLOSING) && - (do_clocal || cd)) + (do_clocal || tty_port_carrier_raised(port))) break; if (signal_pending(current)) { retval = -ERESTARTSYS; |