kernel/git/stable/linux.git/drivers/char/synclink_gt.c, branch master

tty: move a number of tty drivers from drivers/char/ to drivers/tty/

2011-02-23T00:14:56+00:00

As planned by Arnd Bergmann, this moves the following drivers from drivers/char/ to drivers/tty/ as that's where they really belong: amiserial nozomi synclink rocket cyclades moxa mxser isicom bfin_jtag_comm Cc: Arnd Bergmann Cc: Alan Cox Cc: Jiri Slaby Signed-off-by: Greg Kroah-Hartman

tty: now phase out the ioctl file pointer for good

2011-02-17T19:59:56+00:00

Only oddities here are a couple of drivers that bogusly called the ldisc helpers instead of returning -ENOIOCTLCMD. Fix the bug and the rest goes away. Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

tiocmset: kill the file pointer argument

2011-02-17T19:52:43+00:00

Doing tiocmget was such fun we should do tiocmset as well for the same reasons Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

tiocmget: kill off the passing of the struct file

2011-02-17T19:47:33+00:00

We don't actually need this and it causes problems for internal use of this functionality. Currently there is a single use of the FILE * pointer. That is the serial core which uses it to check tty_hung_up_p. However if that is true then IO_ERROR is also already set so the check may be removed. Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

drivers/char/synclink_gt.c: add extended sync feature

2010-10-28T01:03:14+00:00

Add support for extended byte synchronous mode feature of hardware. Signed-off-by: Paul Fulghum Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/char/synclink_gt.c: fix information leak to userland

2010-10-28T01:03:14+00:00

Structures tmp_params and new_line are copied to userland with some padding fields unitialized. It leads to leaking of stack memory. Signed-off-by: Vasiliy Kulikov Acked-by: Paul Fulghum Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

synclink_gt: fix per device locking

2010-10-28T01:03:14+00:00

Fix a long standing bug with per device locking. Each device has an associated spinlock for synchronizing access to hardware and state information with the ISR. A single hardware card has one or more devices. Bug: Non ISR code correctly acquires and releases the per device lock. ISR incorrectly always acquires and releases the lock of the first device on the card. The decoupled and list based nature of the ISR and deferred processing interaction allowed this to work in normal operation. Exceptional events like an application forcing hardware shutdown, reset, or reconfiguration while active can trigger the bug. Fixed ISR to acquire and release the per device lock. One exception is manipulation of the GPIO card resource which is global and effectively owned by the first device of the card. Non-ISR access to GPIO resource is changed to use lock of first device on card. Signed-off-by: Paul Fulghum Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

tty: icount changeover for other main devices

2010-10-22T17:20:05+00:00

Again basically cut and paste Convert the main driver set to use the hooks for GICOUNT Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

synclink: add mutex_unlock() on error path

2010-08-24T01:17:21+00:00

There is a path which still holds its mutex here. Signed-off-by: Dan Carpenter Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

tty: release BTM while sleeping in block_til_ready

2010-08-10T20:47:44+00:00

Most tty drivers may block while opening a device. Since this possibly depends on another thread closing it first and both threads may need the BTM, we need to release it here. Signed-off-by: Arnd Bergmann Cc: Alan Cox Signed-off-by: Greg Kroah-Hartman