linux-toradex.git/drivers/char/moxa.c, branch v2.6.32.19

headers: smp_lock.h redux

2009-07-12T19:22:34+00:00

* Remove smp_lock.h from files which don't need it (including some headers!)
* Add smp_lock.h to files which do need it
* Make smp_lock.h include conditional in hardirq.h
  It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT

  This will make hardirq.h inclusion cheaper for every PREEMPT=n config
  (which includes allmodconfig/allyesconfig, BTW)

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Linus Torvalds

Revert "char: moxa, prevent opening unavailable ports"

2009-06-22T18:24:43+00:00

This reverts commit a90b037583d5f1ae3e54e9c687c79df82d1d34a4, which
already got fixed as commit f0e8527726b9e56649b9eafde3bc0fbc4dd2dd47:
the same patch (trivial differences) got applied twice.

Requested-by: Alan Cox 
Signed-off-by: Linus Torvalds

char: moxa, prevent opening unavailable ports

2009-06-19T23:46:06+00:00

In moxa.c there are 32 minor numbers reserved for each device.  The number
of ports actually available per device is stored in
moxa_board_conf->numPorts.  This number is not considered in moxa_open().
Opening a port that is not available results in a kernel oops.  This patch
adds a test to moxa_open() that prevents opening unavailable ports.

[akpm@linux-foundation.org: avoid multiple returns]
Signed-off-by: Dirk Eibach 
Signed-off-by: Jiri Slaby 
Cc: Alan Cox 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

moxa: prevent opening unavailable ports

2009-06-11T15:51:09+00:00

In moxa.c there are 32 minor numbers reserved for each device. The
number of ports actually available per device is stored in
moxa_board_conf->numPorts. This number is not considered in moxa_open().
Opening a port that is not available results in a kernel oops.
This patch adds a test to moxa_open() that prevents opening unavailable
ports.

Signed-off-by: Dirk Eibach 
Signed-off-by: Jiri Slaby 
Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

tty: moxa, fix refcounting in moxa_poll_port

2009-04-06T21:36:33+00:00

There is missing tty_kref_put on some paths in moxa_poll_port,
although the reference is always taken. Fix it.

Signed-off-by: Jiri Slaby 
Reported-by: Jan 'Yenya' Kasprzak 
Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

tty_port: Add a port level carrier detect operation

2009-01-02T18:19:38+00:00

This is the first step to generalising the various pieces of waiting logic
duplicated in all sorts of serial drivers.

Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

char: moxa.c sparse annotation

2008-10-16T18:21:47+00:00

The only use is to pass this to le16_to_cpu, declare as such
drivers/char/moxa.c:548:11: warning: cast to restricted __le16.

Signed-off-by: Harvey Harrison 
Cc: Jiri Slaby 
Cc: Alan Cox 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tty: kref usage for isicom and moxa

2008-10-13T16:51:41+00:00

Rather than blindly keep taking krefs we reorder the code in a few places
to pass the tty down to the right place (which is important as from the user
side it is not the case that tty == port->tty in all situations). For the irq
and related paths use the krefs to stop the tty being freed under us.

Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

tty: rework break handling

2008-07-22T20:03:28+00:00

Some hardware needs to do break handling itself and may have partial
support only. Make break_ctl return an error code. Add a tty driver flag
so you can indicate driver hardware side break support.

Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

tty: add more tty_port fields

2008-07-21T00:12:38+00:00

Move more bits into the tty_port structure

Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds