linux/drivers/tty, branch v3.9

TTY: fix atime/mtime regression

2013-04-26T14:59:23Z

In commit b0de59b5733d ("TTY: do not update atime/mtime on read/write") we removed timestamps from tty inodes to fix a security issue and waited if something breaks. Well, 'w', the utility to find out logged users and their inactivity time broke. It shows that users are inactive since the time they logged in. To revert to the old behaviour while still preventing attackers to guess the password length, we update the timestamps in one-minute intervals by this patch. Signed-off-by: Jiri Slaby Cc: Greg Kroah-Hartman Signed-off-by: Linus Torvalds

tty: mxser: fix cycle termination condition in mxser_probe() and mxser_module_init()

2013-04-08T18:30:04Z

There is a bug in resources deallocation code in mxser_probe() and mxser_module_init(). As soon as variable 'i' is unsigned int, cycle termination condition i >= 0 is always true. The patch fixes the issue. Signed-off-by: Alexey Khoroshilov Acked-by: Jiri Slaby Signed-off-by: Greg Kroah-Hartman

Revert "tty/8250_pnp: serial port detection regression since v3.7"

2013-04-08T18:30:04Z

This reverts commit 77e372a3d82e5e4878ce1962207edd766773cc76. Checking for disabled resources board breaks detection pnp on another board "AMI UEFI implementation (Version: 0406 Release Date: 06/06/2012)". I'm working with the reporter of the original bug to write and test a better fix. https://bugzilla.redhat.com/show_bug.cgi?id=928246 Signed-off-by: Sean Young Cc: stable Signed-off-by: Greg Kroah-Hartman

OMAP/serial: Revert bad fix of Rx FIFO threshold granularity

2013-04-03T20:25:11Z

Partially reverts 1776fd059c40907297d6c26c51876575d63fd9e2 that introduced regression reported by Paul Walmsley. This commit restores setting granularity in SCR register and adds note about comments below being inconsistent with actual code. Signed-off-by: Alexey Pelykh Tested-by: Paul Walmsley Cc: Kevin Hilman Cc: Felipe Balbi Signed-off-by: Greg Kroah-Hartman

Merge tag 'tty-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2013-03-28T22:53:33Z

Pull TTY/serial fixes from Greg Kroah-Hartman: "Here are some tty/serial driver fixes for 3.9. The big thing here is the fix for the huge mess we caused renaming the 8250 driver accidentally in the 3.7 kernel release, without realizing that there were users of the module options that suddenly broke. This is now resolved, and, to top the injury off, we have a backwards- compatible option for those users who got used to the new name since 3.7. Ugh, sorry about that. Other than that, some other minor fixes for issues that have been reported by users." * tag 'tty-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: Xilinx: ARM: UART: clear pending irqs before enabling irqs TTY: 8250, deprecated 8250_core.* options TTY: 8250, revert module name change serial: 8250_pci: Add WCH CH352 quirk to avoid Xscale detection tty: atmel_serial_probe(): index of atmel_ports[] fix

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-03-27T00:42:55Z

Pull vfs fixes from Al Viro: "stable fodder; assorted deadlock fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: vt: synchronize_rcu() under spinlock is not nice... Nest rename_lock inside vfsmount_lock Don't bother with redoing rw_verify_area() from default_file_splice_from()

vt: synchronize_rcu() under spinlock is not nice...

2013-03-27T00:30:17Z

vcs_poll_data_free() calls unregister_vt_notifier(), which calls atomic_notifier_chain_unregister(), which calls synchronize_rcu(). Do it *after* we'd dropped ->f_lock. Cc: stable@vger.kernel.org (all kernels since 2.6.37) Signed-off-by: Al Viro

Xilinx: ARM: UART: clear pending irqs before enabling irqs

2013-03-25T23:26:23Z

The Boot ROM has an issue which will cause the driver to lock up as pending irqs are not being cleared. With them cleared it prevents that issue. This patch is needed for the current (3.9-rc3) mainline kernel. I guess it went unnoticed, because it was only tested with u-boot up until now. And u-boot maybe handles this. [s.trumtrar@pengutronix.de: cherry-picked from linux-xlnx.git] Signed-off-by: Steffen Trumtrar Signed-off-by: Greg Kroah-Hartman

TTY: 8250, deprecated 8250_core.* options

2013-03-25T23:26:23Z

They were introduced by mistake in 3.7. Let's deprecate them now. For the reasons, see the text in Kconfig below. Signed-off-by: Jiri Slaby Cc: Josh Boyer Signed-off-by: Greg Kroah-Hartman

TTY: 8250, revert module name change

2013-03-25T23:26:23Z

In 3.7 the 8250 module name was changed unintentionally from 8250 to 8250_core by commit 835d844d1a28efba81d5aca7385e24c29d3a6db2 (8250_pnp: do pnp probe before legacy probe). We then had to re-introduce the old module options to ensure the old good 8250.nr_uart & co. still work. This can be done only by a very dirty hack and we did it in f2b8dfd9e480c3db3bad0c25c590a5d11b31f4ef (serial: 8250: Keep 8250. module options functional after driver rename). That is so damn ugly so that I decided to revert to the old module name and deprecate the new 8250_core options present in 3.7 and 3.8 only. The deprecation will happen in the following patch. Note that this patch changes the hack above to support "8250_core.*", because we now have "8250.*" natively. Signed-off-by: Jiri Slaby Cc: Josh Boyer Signed-off-by: Greg Kroah-Hartman