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2011-04-29usb: gadget: storage_common: use kstrto*() [bug fix]Michal Nazarewicz
This commit fixes an embarrassing bug in the "storage_common: use kstrto*()" patch which caused fsg_store_ro() to return zero instead of the length of the consumed buffer. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb/dummy_hcd: don't probe for udc if hcd failedSebastian Andrzej Siewior
the_controller is allocated in dummy_hcd_probe() and is NULL if the allocation failed. The probe function of the udc driver is dereferencing this pointer and fault. Alan Stern suggested to abort the dummy_hcd driver probing so the module is not loaded. The is abort-on-error has been also added to the udc driver. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb/hcd: don't return 0 on error in usb_add_hcd()Sebastian Andrzej Siewior
If USB type detections fails, we run into default and return 0. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: add autonomy modeKuninori Morimoto
Current renesas_usbhs was designed to save power when USB is not connected. And it assumed platform uses callback to notify connection/disconnection by external interrupt. But some SuperH / platform board doesn't have such feature. This patch adds autonomy mode which detect USB connection/disconnection by internal interrupt. But power will be always ON when autonomy mode is selected. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: use delayed_work instead of work_structKuninori Morimoto
This delay is used to overjump debounce. And, this patch also move usbhsc_drvcllbck_notify_hotplug to global, because it will be called from other files. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: prevent NULL pointer crashKuninori Morimoto
usbhs_status_get_each_irq/usbhs_irq_callback_update might be called with mod == NULL Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: add power control functionKuninori Morimoto
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: move pdev_to_priv to globalKuninori Morimoto
usbhs_pdev_to_priv function will be used in other files. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: add error reason for usbhs_pipe_mallocKuninori Morimoto
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: remove callback when module removed.Kuninori Morimoto
The callback function which is called from platform must be removed if module removed. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: return error if wrong recip requestKuninori Morimoto
There are some USB Host which doesn't notice disconnection at once. And it might try some request after reconnection with old settings. Current renesas_usbhs will crash in such case. This patch prevent this issue. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: modify spinlock methodKuninori Morimoto
Current renesas_usbhs driver was using spin_trylock to avoid dead lock / nest lock. But acording to CONFIG_DEBUG_SPINLOCK, it is BUG under UP environment. This patch add usbhsg_trylock to avoid this issue. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: don't re-allocation pipe bufferKuninori Morimoto
Because pipe buffer allocation is very picky and difficult, current renesas_usbhs driver is not caring pipe re-allocation. In this situation, driver will create new pipe without caring old pipe if "usbhsg_ep_enable" is called after "usbhsg_ep_disable" on current driver. This mean the limited pipe and buffer will be used as waste. But it is possible to re-use same buffer to same pipe. By this patch, driver will initialize pipe when it detected new connection or new gadget, and doesn't try re-allocation for same pipe in above case. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: modify fifo clear timingKuninori Morimoto
Pipe buffer should be cleaned before using it, but should NOT be cleaned in pipe "prepare" function. Because the pipe might be working in such timing. This patch fixup this issue. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29USB: g_printer required set interface requestJonas Andersson
g_printer reqiured "set interface" request from host. Not all hosts send this request. This patch enable the interface when it get "set configuration" request from host. Signed-off-by: Jonas Andersson <jonas@microbit.se> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29USB: dbpg gadget: dont mask out direction bitSven Schnelle
Stripping the direction bit off will produce an invalid descriptor. Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29USB: dbgp gadget: set MaxpacketSize0Sven Schnelle
The current code doesn't set it, so linux complains about it when connected, and ignores the device: [104611.068082] usb 1-5: new high speed USB device using ehci_hcd and address 127 [104611.088368] usb 1-5: Invalid ep0 maxpacket: 0 Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29USB: dbgp gadget: fix return value of dbgp_setupSven Schnelle
Current code returns 0 even if it can't handle the request. This leads to timeouts when an unhandled request is sent: Bus 001 Device 003: ID 0525:c0de Netchip Technology, Inc. Device Descriptor: [..] can't get device qualifier: Connection timed out [..] change the code to return EOPNOTSUPP in such cases. Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: Driver is depend on SuperHKuninori Morimoto
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29usb: renesas_usbhs: fixup cast warningKuninori Morimoto
This patch fixup cast warning on 64 bit compiler Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reported-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29USB: documentation update for the pre_reset methodAlan Stern
This patch (as1459) updates the documentation for the pre_reset method in struct usb_driver. When a driver is notified of an impending reset, it must cancel all outstanding I/O and not start any new I/O until it has been notified that the reset is complete. As far as I know, most existing drivers that implement pre_reset do this now. The major exceptions appear to be the SpeedTouch and CDC-WDM drivers. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29Bind only modem AT command endpoint to option module.Marius B. Kotsbak
Network interface is handled by upcoming gt_b3730 module. Removed "GT-B3710" from comment, it is another modem with another USB ID. Signed-off-by: Marius B. Kotsbak <marius@kotsbak.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29USB: cdc-wdm: reset handling according to new requirementsOliver Neukum
This patch - ensures no IO takes place during resets - reports resets to user space Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29USB: gamin_gps: Fix for data transfer problems in native modeHermann Kneissel
This patch fixes a problem where data received from the gps is sometimes transferred incompletely to the serial port. If used in native mode now all data received via the bulk queue will be forwarded to the serial port. Signed-off-by: Hermann Kneissel <herkne@gmx.de> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29USB: gadget: g_multi: fixed vendor and product ID in inf filesMichal Nazarewicz
Commit 1c6529e92b "USB: gadget: g_multi: fixed vendor and product ID" replaced g_multi's vendor and product ID with proper ID's from Linux Foundation. This commit now updates INF files in the Documentation/usb directory which were omitted in the original commit. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29USB: serial: ftdi_sio: adding support for TavIR STK500Benedek László
Adding support for the TavIR STK500 (id 0403:FA33) Atmel AVR programmer device based on FTDI FT232RL. Signed-off-by: Benedek László <benedekl@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29USB: moto_modem: Add USB identifier for the Motorola VE240.Elizabeth Jennifer Myers
Tested on my phone, the ttyUSB device is created and is fully functional. Signed-off-by: Elizabeth Jennifer Myers <elizabeth@sporksirc.net> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-29USB: CP210x Add 4 Device IDs for AC-Services DevicesCraig Shelley
This patch adds 4 device IDs for CP2102 based devices manufactured by AC-Services. See http://www.ac-services.eu for further info. Signed-off-by: Craig Shelley <craig@microtron.org.uk> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-19Merge 2.6.39-rc4 into usb-nextGreg Kroah-Hartman
This is needed to help resolve some xhci issues and other minor differences. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-18Linux 2.6.39-rc4Linus Torvalds
2011-04-18Merge branch 'for-39-rc4' of git://codeaurora.org/quic/kernel/davidb/linux-msmLinus Torvalds
* 'for-39-rc4' of git://codeaurora.org/quic/kernel/davidb/linux-msm: msm: timer: fix missing return value msm: Remove extraneous ffa device check
2011-04-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * '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
2011-04-18Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* '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
2011-04-18Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * '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
2011-04-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstableLinus Torvalds
* 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 ...
2011-04-18proc: do proper range check on readdir offsetLinus Torvalds
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: Linus Torvalds <torvalds@linux-foundation.org>
2011-04-18next_pidmap: fix overflow conditionLinus Torvalds
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: Tavis Ormandy <taviso@cmpxchg8b.com> Analyzed-by: Robert Święcki <robert@swiecki.net> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-04-18Input: xen-kbdfront - fix mouse getting stuck after save/restoreIgor Mammedov
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 5ea5254aa0ad269cfbd2875c973ef25ab5b5e9db ("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 5ea5254. Acked-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Igor Mammedov <imammedo@redhat.com> [v1: Expanded the commit description] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-18Input: estimate number of events per packetJeff Brown
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: Jeff Brown <jeffbrown@android.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-18Btrfs: fix free space cache leakChris Mason
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: Chris Mason <chris.mason@oracle.com>
2011-04-18block: add blk_run_queue_asyncChristoph Hellwig
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: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-04-18block: blk_delay_queue() should use kblockd workqueueJens Axboe
Reported-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-04-18md: fix up raid1/raid10 unplugging.NeilBrown
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: NeilBrown <neilb@suse.de>
2011-04-18md: incorporate new plugging into raid5.NeilBrown
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: NeilBrown <neilb@suse.de>
2011-04-18md: provide generic support for handling unplug callbacks.NeilBrown
When an md device adds a request to a queue, it can call mddev_check_plugged. If this succeeds then we know that the md thread will be woken up shortly, and ->plug_cnt will be non-zero until then, so some processing can be delayed. If it fails, then no unplug callback is expected and the make_request function needs to do whatever is required to make the request happen. Signed-off-by: NeilBrown <neilb@suse.de>
2011-04-18md - remove old plugging code.NeilBrown
md has some plugging infrastructure for RAID5 to use because the normal plugging infrastructure required a 'request_queue', and when called from dm, RAID5 doesn't have one of those available. This relied on the ->unplug_fn callback which doesn't exist any more. So remove all of that code, both in md and raid5. Subsequent patches with restore the plugging functionality. Signed-off-by: NeilBrown <neilb@suse.de>
2011-04-18md/dm - remove remains of plug_fn callback.NeilBrown
Now that unplugging is done differently, the unplug_fn callback is never called, so it can be completely discarded. Signed-off-by: NeilBrown <neilb@suse.de>
2011-04-18md: use new plugging interface for RAID IO.NeilBrown
md/raid submits a lot of IO from the various raid threads. So adding start/finish plug calls to those so that some plugging happens. Signed-off-by: NeilBrown <neilb@suse.de>
2011-04-18block: drop queue lock before calling __blk_run_queue() for kblockd puntJens Axboe
If we know we are going to punt to kblockd, we can drop the queue lock before calling into __blk_run_queue() since it only does a safe bit test and a workqueue call. Since kblockd needs to grab this very lock as one of the first things it does, it's a good optimization to drop the lock before waking kblockd. Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-04-18Revert "block: add callback function for unplug notification"Jens Axboe
MD can't use this since it really requires us to be able to keep more than a single piece of state for the unplug. Commit 048c9374 added the required support for MD, so get rid of this now unused code. This reverts commit f75664570d8b75469cc468f23c2b27220984983b. Conflicts: block/blk-core.c Signed-off-by: Jens Axboe <jaxboe@fusionio.com>