Messages in this thread Patch in this message | | | Date | Fri, 26 Jul 2002 11:17:00 +0100 | From | Russell King <> | Subject | [SERIAL] Various updates |
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The following is a copy of what's pending in my BK and CVS repositories, with the exception of the removal of serial_{21285,amba}.c in drivers/char (which would push the patch over 40K.)
My preferred route to get this to Linus is via a BK pull; this is for everyone else.
Documentation/serial/driver | 2 drivers/serial/core.c | 5 4 files changed, 5 insertions, 2513 deletions
ChangeSets:
<rmk@flint.arm.linux.org.uk> (02/07/26 1.444) [SERIAL] Stop open() looping while opening a non-present port Trying to open a non-present port (for configuration) causes us to to endlessly loop (by returning -ERESTARTSYS). We should be returning success. This cset fixes this.
<rmk@flint.arm.linux.org.uk> (02/07/26 1.443) [SERIAL] Fix buglet causing (eg) ttyS-14 Allocate positive instead of negative line numbers when 8250.c registers a new port with the core. This bug could cause registrations to erroneously fail, or oopsen when the pcmcia serial device is ejected.
<rmk@flint.arm.linux.org.uk> (02/07/25 1.442) [SERIAL] Fix documentation bug for expected stop_tx interrupt state.
diff -Nru a/Documentation/serial/driver b/Documentation/serial/driver --- a/Documentation/serial/driver Fri Jul 26 10:52:30 2002 +++ b/Documentation/serial/driver Fri Jul 26 10:52:30 2002 @@ -120,7 +120,7 @@ TTY stop to the driver (equiv to rs_stop). Locking: port->lock taken. - Interrupts: caller dependent. + Interrupts: locally disabled. This call must not sleep start_tx(port,tty_start) diff -Nru a/drivers/serial/core.c b/drivers/serial/core.c --- a/drivers/serial/core.c Fri Jul 26 10:52:30 2002 +++ b/drivers/serial/core.c Fri Jul 26 10:52:30 2002 @@ -1450,6 +1450,9 @@ if (signal_pending(current)) return -ERESTARTSYS; + if (info->tty->flags & (1 << TTY_IO_ERROR)) + return 0; + if (tty_hung_up_p(filp) || !(info->flags & UIF_INITIALIZED)) return (port->flags & UPF_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS; @@ -2425,7 +2428,7 @@ state->port->regshift = port->regshift; state->port->iotype = port->iotype; state->port->flags = port->flags; - state->port->line = drv->state - state; + state->port->line = state - drv->state; __uart_register_port(drv, state, state->port); -- Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux http://www.arm.linux.org.uk/personal/aboutme.html
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