linux-toradex.git/drivers/char/nozomi.c, branch v2.6.32.45

nozomi: quick fix for the close/close bug

2010-01-25T18:49:20+00:00

commit eeec32a731631a9bad9abb21c626b9f2840bee0d upstream.

Nozomi goes wrong if you get the sequence

	open
	open
	close

	[stuff]
	close

which turns out to occur on some ppp type setups.

This is a quick patch up for the problem. It's not really fixing Nozomi
which completely fails to implement tty open/close semantics and all the
other needed stuff. Doing it right is a rather more invasive patch set and
not one that will backport.

Signed-off-by: Alan Cox 
Signed-off-by: Greg Kroah-Hartman

headers: remove sched.h from interrupt.h

2009-10-11T18:20:58+00:00

After m68k's task_thread_info() doesn't refer to current,
it's possible to remove sched.h from interrupt.h and not break m68k!
Many thanks to Heiko Carstens for allowing this.

Signed-off-by: Alexey Dobriyan

tty: fix chars_in_buffers

2009-07-20T23:38:43+00:00

This function does not have an error return and returning an error is
instead interpreted as having a lot of pending bytes.

Reported by Jeff Harris who provided a list of some of the remaining
offenders.

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

tty: nozomi, fix tty refcounting bug

2009-07-16T16:19:16+00:00

Don't forget to drop a tty refererence on fail paths in
receive_data().

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

Remove low_latency flag setting from nozomi and mxser drivers

2009-06-24T16:55:50+00:00

The kernel oopses if this flag is set.

[and neither driver should set it as they call tty_flip_buffer_push from IRQ
 paths so have always been buggy]

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

tty: kref nozomi

2009-01-02T18:19:40+00:00

Update the nozomi driver to use krefs

Signed-off-by: Linus Torvalds

nozomi: Fix close on error

2008-10-13T16:51:39+00:00

Nozomi assumes the close method isn't called if open errors. The tty layer
is different to other drives in this respect however. Pointed out by Denis J
Barrow.

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

drivers/char: replace remaining FUNCTION occurrences

2008-04-30T15:29:54+00:00

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

char serial: switch drivers to ioremap_nocache

2008-04-30T15:29:48+00:00

Simple search/replace except for synclink.c where I noticed a real bug and
fixed it too.  It was doing NULL + offset, then checking for NULL if the remap
failed.

Signed-off-by: Alan Cox 
Cc: Paul Fulghum 
Acked-by: Jiri Slaby 
Cc: Ingo Molnar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tty/serial: lay the foundations for the next set of reworks

2008-04-30T15:29:45+00:00

- Stop drivers calling their own flush method indirectly, it obfuscates code
  and it will change soon anyway

- A few more lock_kernel paths temporarily needed in some driver internal
  waiting code

- Remove private put_char method that does a write call for one char - we
  have that anyway

- Most but not yet all of the termios copy under lock fixing (some has other
  dependencies to follow)

- Note a few locking bugs in drivers found in the process

- Kill remaining [ab]users of TIOCG/SSOFTCAR in the driver, these must go to
  fix the termios locking

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