- 23 4月, 2011 1 次提交
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由 Felipe Balbi 提交于
it makes it simpler to keep track of the amount of bytes received and simplifies how flush_to_ldisc counts the remaining bytes. It also fixes a bug of lost bytes on n_tty when flushing too many bytes via the USB serial gadget driver. Tested-by: NStefan Bigler <stefan.bigler@keymile.com> Tested-by: NToby Gray <toby.gray@realvnc.com> Signed-off-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 20 4月, 2011 24 次提交
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由 Govindraj.R 提交于
Remove stale code in serial_core layer. Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: NGovindraj.R <govindraj.raja@ti.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Petr Písař 提交于
Traditional \E[2J sequence erases console display but scroll-back buffer and underlying device (frame) buffer keep data that can be accessed by scrolling console back. This patch introduce new \E[J parameter 3 that allows to scramble scroll-back buffer explicitly. Session locking programs (screen, vlock) can use it to prevent attacker to browse locked console history. Signed-off-by: NPetr Písař <ppisar@redhat.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jesper Juhl 提交于
Including linux/tty.h 3 times is a little over the top - once will do. Signed-off-by: NJesper Juhl <jj@chaosbits.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jovi Zhang 提交于
remove invalid location line in each file header after location moved from driver/char to driver/tty Signed-off-by: NJovi Zhang <bookjovi@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
Now, uart_update_termios is empty, so it's time to remove it. We no longer need a live tty in .dtr_rts. So this should prune all the bugs where tty is zeroed in port->tty during tty_port_block_til_ready. There is one thing to note. We don't set ASYNC_NORMAL_ACTIVE now. It's because this is done already in tty_port_block_til_ready. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
In .dtr_rts we do: uart_set_mctrl(uport, TIOCM_DTR | TIOCM_RTS) and call uart_update_termios. It does: uart_set_mctrl(port, TIOCM_DTR | TIOCM_RTS) once again. As the only callsite of uart_update_termios is .dtr_rts, remove the uart_set_mctrl from uart_update_termios to not set it twice. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
We should not fiddle with speed and cflags in .dtr_rts hook. Actually we might not have tty at that moment already. So move the console cflag copy and speed setup into uart_startup. Actually the speed setup is already there, but we need to call it unconditionally (uart_startup is called from uart_open with hw_init = 0). This means we move uart_change_speed before dtr/rts setup in .dtr_rts. But this should not matter as the setup should be called after uart_change_speed anyway. Before: After: dtr/rts setup (dtr_rts) uart_change_speed (startup) uart_change_speed (update_termios) dtr/rts setup (dtr_rts) dtr/rts setup (update_termios) dtr/rts setup (update_termios) The second setup will dismiss with the next patch. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
The bit is set in tty_port_block_til_ready (via moxa_open) and unset in tty_port_close (via moxa_close). No need to pin it in the driver. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Tobias Klauser 提交于
Devices extracted from device tree all seem to have pdev->id set to -1. Up until now we mapped all devices with id -1 to the first device. This behaviour could lead to problems when using more than one Altera UART in a system. This patch changes the behaviour of the driver to scan for the next free id in case the id is -1. Because we cannot refer back to the assigned id in altera_uart_remove, the port instance needs to be stored in device drvdata. Reported-by: NDavid Smoot <davidsmoot@gmail.com> Cc: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: NTobias Klauser <tklauser@distanz.ch> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
When tty_add_file fails we omit to clean up. Fix that by calling tty_release appropriatelly. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
Used the newly introduced deinitialize_tty_struct to properly shut down ldisc. It is intended to fix the Julian's reported problem. He reports that kmemleak checker warns about memory leak: unreferenced object 0xc0e19860 (size 8): comm cat, pid 1226, jiffies 4294919464 (age 287.476s) hex dump (first 8 bytes): 44 de 2d c1 01 00 00 00 D.-..... backtrace: [<c1065a74>] create_object+0x109/0x1ad [<c1063d2b>] kmem_cache_alloc+0x60/0x68 [<c113505c>] tty_ldisc_get+0x54/0x76 [<c11358c9>] tty_ldisc_init+0xa/0x20 [<c1130ab4>] initialize_tty_struct+0x2d/0x1ac [<c1130c8c>] tty_init_dev+0x59/0x10d [<c113136d>] tty_open+0x24a/0x3a2 ... Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Reported-by: NJulian Anastasov <ja@ssi.bg> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
Introduce deinitialize_tty_struct which should be called after initialize_tty_struct and before successfull tty_ldisc_setup. It calls tty_ldisc_deinit which is opposite of tty_ldisc_init. It only puts a reference to ldisc and assigns NULL to tty->ldisc. It will be used to shut down ldisc when tty_release cannot be called yet. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Julian Anastasov <ja@ssi.bg> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
Change it so that we call the deinit functions at one place at the end of the function (by gotos). And while at it use some sane label names. This is a preparation for the deinitialization of tty in the next patch. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Julian Anastasov <ja@ssi.bg> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
Change it so that we call the deinit functions at one place at the end of the function (by gotos). And while at it use some sane label names. This is a preparation for the deinitialization of tty in the next patch. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Julian Anastasov <ja@ssi.bg> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
Change it so that we call the deinit functions at one place at the end of the function (by gotos). And while at it use some sane label names. This is a preparation for the deinitialization of tty in the next patch. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Julian Anastasov <ja@ssi.bg> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
drivers/tty/rocket.c:1393:2: warning: Value stored to 'cp' is never read cp = &info->channel; ^ ~~~~~~~~~~~~~~ drivers/tty/rocket.c:1412:2: warning: Value stored to 'cp' is never read cp = &info->channel; ^ ~~~~~~~~~~~~~~ drivers/tty/rocket.c:1730:2: warning: Value stored to 'cp' is never read cp = &info->channel; ^ ~~~~~~~~~~~~~~ drivers/tty/rocket.c:1825:3: warning: Value stored to 'str' is never read str = "8"; ^ ~~~ [many 'str' warnings stripped] drivers/tty/rocket.c:2037:3: warning: Value stored to 'board_type' is never read board_type = "RocketModem"; ^ ~~~~~~~~~~~~~ [some 'board_type' warnings stripped] Signed-off-by: NJiri Slaby <jslaby@suse.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
drivers/tty/moxa.c:1287:2: warning: Value stored to 'port' is never read port = tty->index; ^ ~~~~~~~~~~ drivers/tty/moxa.c:1763:2: warning: Value stored to 'cflag' is never read cflag = termio->c_cflag; /* termio->c_cflag */ ^ ~~~~~~~~~~~~~~~ Signed-off-by: NJiri Slaby <jslaby@suse.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
drivers/tty/vt/vt.c:892:2: warning: Value stored to 'old_screen_size' is never read old_screen_size = vc->vc_screenbuf_size; ^ ~~~~~~~~~~~~~~~~~~~~~ drivers/tty/vt/vt.c:890:2: warning: Value stored to 'old_cols' is never read old_cols = vc->vc_cols; ^ ~~~~~~~~~~~ Signed-off-by: NJiri Slaby <jslaby@suse.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
drivers/tty/cyclades.c:1454:2: warning: Value stored to 'channel' is never read channel = info->line - card->first_line; ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix it by moving it to the appropriate debug section where it is used. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
drivers/tty/serial/serial_core.c:1980:2: warning: Value stored to 'tty' is never read tty = port->tty; ^ ~~~~~~~~~ Signed-off-by: NJiri Slaby <jslaby@suse.cz> Acked-by: NGovindraj.R <govindraj.raja@ti.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jiri Slaby 提交于
drivers/tty/vt/vt_ioctl.c:1525:2: warning: Value stored to 'kbd' is never read kbd = kbd_table + console; ^ ~~~~~~~~~~~~~~~~~~~ Signed-off-by: NJiri Slaby <jslaby@suse.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Andrew Morton 提交于
Cc: Arthur Taylor <art@ified.ca> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Arthur Taylor 提交于
After adding support for K_OFF in KDSKBMODE, it was forgotten to add support for returning it in KDGKBMODE. Signed-off-by: NArthur Taylor <art@ified.ca> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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The current check is uneeded, since !retval will always returns true, as retval returned from tty_add_file is checked earlier and tty_open exits if it's not zero. Acked-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NHerton Ronaldo Krzesinski <herton.krzesinski@canonical.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 19 4月, 2011 10 次提交
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由 Linus Torvalds 提交于
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git://codeaurora.org/quic/kernel/davidb/linux-msm由 Linus Torvalds 提交于
* 'for-39-rc4' of git://codeaurora.org/quic/kernel/davidb/linux-msm: msm: timer: fix missing return value msm: Remove extraneous ffa device check
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: xen-kbdfront - fix mouse getting stuck after save/restore Input: estimate number of events per packet Input: evdev - indicate buffer overrun with SYN_DROPPED Input: document event types and codes and their intended use Input: add KEY_IMAGES specifically for AL Image Browser Input: twl4030_keypad - fix potential NULL dereference in twl4030_kp_probe() Input: h3600_ts - fix error handling at connect Input: twl4030_keypad - avoid potential NULL-pointer dereference
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git://git.kernel.dk/linux-2.6-block由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: add blk_run_queue_async block: blk_delay_queue() should use kblockd workqueue md: fix up raid1/raid10 unplugging. md: incorporate new plugging into raid5. md: provide generic support for handling unplug callbacks. md - remove old plugging code. md/dm - remove remains of plug_fn callback. md: use new plugging interface for RAID IO. block: drop queue lock before calling __blk_run_queue() for kblockd punt Revert "block: add callback function for unplug notification" block: Enhance new plugging support to support general callbacks
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/powermac: Build fix with SMP and CPU hotplug powerpc/perf_event: Skip updating kernel counters if register value shrinks powerpc: Don't write protect kernel text with CONFIG_DYNAMIC_FTRACE enabled powerpc: Fix oops if scan_dispatch_log is called too early powerpc/pseries: Use a kmem cache for DTL buffers powerpc/kexec: Fix regression causing compile failure on UP powerpc/85xx: disable Suspend support if SMP enabled powerpc/e500mc: Remove CPU_FTR_MAYBE_CAN_NAP/CPU_FTR_MAYBE_CAN_DOZE powerpc/book3e: Fix CPU feature handling on 64-bit e5500 powerpc: Check device status before adding serial device powerpc/85xx: Don't add disabled PCIe devices
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (24 commits) Btrfs: fix free space cache leak Btrfs: avoid taking the chunk_mutex in do_chunk_alloc Btrfs end_bio_extent_readpage should look for locked bits Btrfs: don't force chunk allocation in find_free_extent Btrfs: Check validity before setting an acl Btrfs: Fix incorrect inode nlink in btrfs_link() Btrfs: Check if btrfs_next_leaf() returns error in btrfs_real_readdir() Btrfs: Check if btrfs_next_leaf() returns error in btrfs_listxattr() Btrfs: make uncache_state unconditional btrfs: using cached extent_state in set/unlock combinations Btrfs: avoid taking the trans_mutex in btrfs_end_transaction Btrfs: fix subvolume mount by name problem when default mount subvolume is set fix user annotation in ioctl.c Btrfs: check for duplicate iov_base's when doing dio reads btrfs: properly handle overlapping areas in memmove_extent_buffer Btrfs: fix memory leaks in btrfs_new_inode() Btrfs: check for duplicate iov_base's when doing dio reads Btrfs: reuse the extent_map we found when calling btrfs_get_extent Btrfs: do not use async submit for small DIO io's Btrfs: don't split dio bios if we don't have to ...
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由 Linus Torvalds 提交于
Rather than pass in some random truncated offset to the pid-related functions, check that the offset is in range up-front. This is just cleanup, the previous commit fixed the real problem. Cc: stable@kernel.org Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
next_pidmap() just quietly accepted whatever 'last' pid that was passed in, which is not all that safe when one of the users is /proc. Admittedly the proc code should do some sanity checking on the range (and that will be the next commit), but that doesn't mean that the helper functions should just do that pidmap pointer arithmetic without checking the range of its arguments. So clamp 'last' to PID_MAX_LIMIT. The fact that we then do "last+1" doesn't really matter, the for-loop does check against the end of the pidmap array properly (it's only the actual pointer arithmetic overflow case we need to worry about, and going one bit beyond isn't going to overflow). [ Use PID_MAX_LIMIT rather than pid_max as per Eric Biederman ] Reported-by: NTavis Ormandy <taviso@cmpxchg8b.com> Analyzed-by: NRobert Święcki <robert@swiecki.net> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Igor Mammedov 提交于
Mouse gets "stuck" after restore of PV guest but buttons are in working condition. If driver has been configured for ABS coordinates at start it will get XENKBD_TYPE_POS events and then suddenly after restore it'll start getting XENKBD_TYPE_MOTION events, that will be dropped later and they won't get into user-space. Regression was introduced by hunk 5 and 6 of 5ea5254a ("Input: xen-kbdfront - advertise either absolute or relative coordinates"). Driver on restore should ask xen for request-abs-pointer again if it is available. So restore parts that did it before 5ea5254a. Acked-by: NOlaf Hering <olaf@aepfle.de> Signed-off-by: NIgor Mammedov <imammedo@redhat.com> [v1: Expanded the commit description] Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
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由 Jeff Brown 提交于
Calculate a default based on the number of ABS axes, REL axes, and MT slots for the device during input device registration. Signed-off-by: NJeff Brown <jeffbrown@android.com> Reviewed-by: NHenrik Rydberg <rydberg@euromail.se> Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
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- 18 4月, 2011 5 次提交
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由 Chris Mason 提交于
The free space caching code was recently reworked to cache all the pages it needed instead of using find_get_page everywhere. One loop was missed though, so it ended up leaking pages. This fixes it to use our page array instead of find_get_page. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Christoph Hellwig 提交于
Instead of overloading __blk_run_queue to force an offload to kblockd add a new blk_run_queue_async helper to do it explicitly. I've kept the blk_queue_stopped check for now, but I suspect it's not needed as the check we do when the workqueue items runs should be enough. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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由 Jens Axboe 提交于
Reported-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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由 NeilBrown 提交于
We just need to make sure that an unplug event wakes up the md thread, which is exactly what mddev_check_plugged does. Also remove some plug-related code that is no longer needed. Signed-off-by: NNeilBrown <neilb@suse.de>
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由 NeilBrown 提交于
In raid5 plugging is used for 2 things: 1/ collecting writes that require a bitmap update 2/ collecting writes in the hope that we can create full stripes - or at least more-full. We now release these different sets of stripes when plug_cnt is zero. Also in make_request, we call mddev_check_plug to hopefully increase plug_cnt, and wake up the thread at the end if plugging wasn't achieved for some reason. Signed-off-by: NNeilBrown <neilb@suse.de>
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