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* USB: otg: Fix bug on remove path without transceiverRobert Jarzmik2009-04-23
| | | | | | | | | | | | | | | In the case where a gadget driver is removed while no transceiver was found at probe time, a bug in otg_put_transceiver() will trigger. Provide symetric calls for otg_get_transceiver() and otg_put_transceiver(), wherever a transceiver was found or not. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: correct error handling in cdc-wdmOliver Neukum2009-04-23
| | | | | | | | | | | | | | | This patch to cdc-wdm - checks for partial extra descriptors - fixes a leak in the error case of probe - checks for an exact number of endpoints - adds a clarifying comment Signed-off-by: Oliver Neukum <oliver@neukum.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: removal of tty->low_latency hack dating back to the old serial codeOliver Neukum2009-04-23
| | | | | | | | | | | | This removes tty->low_latency from all USB serial drivers that push data into the tty layer at hard interrupt context. It's no longer needed and actually harmful. Signed-off-by: Oliver Neukum <oliver@neukum.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: serial: sierra driver bug fix for composite interfaceElina Pasheva2009-04-23
| | | | | | | | | | | | This patch fixes a problem in sierra_send_setup() function when composite devices are used. One should not be sending ACM commands to interfaces that are OBEX. Doing this causes an apparent failure as the ACM command has to time out before the interface can start being used. Signed-off-by: Elina Pasheva <epasheva@sierrawireless.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: omap_udc uses platform_driver_probe()David Brownell2009-04-23
| | | | | | | | | We now have a more correct solution for shrinking runtime driver footprints than just marking probe() as __init ... use it. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ci13xxx_udc: fix build errorMatthias Kaehlcke2009-04-23
| | | | | | | | | | Fix build error in the MIPS USB IP core family device controller driver. The driver calls udelay() without including linux/delay.h Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: pass mem_flags to dma_alloc_coherentJohannes Berg2009-04-23
| | | | | | | | | | | | | | | | | | | | | | | | | When I want to use my webcam, I get: vvvvvvv cheese: page allocation failure. order:5, mode:0x8004 Pid: 8100, comm: cheese Not tainted 2.6.30-rc2-wl-dirty #102 Call Trace: [<ffffffff802c5d8e>] __alloc_pages_internal+0x3fe/0x520 [<ffffffff80210a20>] dma_generic_alloc_coherent+0x90/0x120 [<ffffffffa001c91e>] hcd_buffer_alloc+0xee/0x130 [usbcore] [<ffffffffa000d52d>] usb_buffer_alloc+0x2d/0x40 [usbcore] [<ffffffffa0160e14>] uvc_alloc_urb_buffers+0x84/0x140 [uvcvideo] [<ffffffffa0160ff6>] uvc_init_video+0x126/0x400 [uvcvideo] [...] Oddly, I remembered fixing this and putting in __GFP_NOWARN because uvcvideo retries a smaller allocation. However, the allocation function doesn't pass the gfp flags through to dma_alloc_coherent so we still get the warning! Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: g_file_storage: fix use-after-free bug when closing filesAlan Stern2009-04-23
| | | | | | | | | | | | | | | | | This patch (as1231) fixes a use-after-free bug in g_file_storage. A device's name may not be available after the device is unregistered, even if the device structure itself is still allocated. Since close_backing_file() prints a LUN's name for debugging, it shouldn't be called after the LUN has been unregistered. That whole area needed to be cleaned up; the backing files were getting closed in a couple of different places. The patch fixes things so that they get closed in just one place, as part of the unbind procedure, immediately before the LUN is unregistered. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci-sched.c: EHCI SITD scheduling bugfixDan Streetman2009-04-23
| | | | | | | | | | | | | | | | | | | | | | | | | | Without this patch, the driver won't check that the last fully-occupied uframe for a new split transaction was vacant beforehand. This can lead to a situation in which the first 188 bytes of a 192-byte isochronous transfer are scheduled in the same uframe as an existing interrupt transfer. The resulting schedule looks like this: uframe 0: 188-byte isoc-OUT SSPLIT, 8-byte int-IN SSPLIT uframe 1: 4-byte isoc-OUT SSPLIT The SSPLITs are intermingled, causing an error in the downstream hub's TT. If you are having problems with devices or hub ports resetting, or failed interrupt transfers, when you start using a USB audio or video (Isochronous) device, this patch may help. Signed-off-by: Dan Streetman <ddstreet@ieee.org> Reported-by: Kung James <kong1191@gmail.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Alan Stern <stern@rowland.harvard.edu>
* USB: fix mos7840 problem with minor numbersTony Cook2009-04-23
| | | | | | | | | | | This patch fixes a problem with any mos7840 device where the use of the field "minor" before it is initialised results in all the devices being overlaid in memory (minor = 0 for all instances) Contributed by: Phillip Branch Signed-off-by: Tony Cook <tony-cook@bigpond.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mos7840: add new device idTony Cook2009-04-23
| | | | | | | | | | | | add USB ids for the mos7840 based ATEN International serial devices. Contributed by: Phillip Branch Signed-off-by: Tony Cook <tony-cook@bigpond.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: musb: fix build when !CONFIG_PMAlexander Beregalov2009-04-23
| | | | | | | | | Fix this build error when CONFIG_PM is not set: drivers/usb/musb/musb_core.c:2232: error: 'musb_resume_early' undeclared here Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: musb: Remove my email address from few musb related driversJarkko Nikula2009-04-23
| | | | | | | | | | This email address is going to expire soon and my contribution to musb is next to zero so remove it. Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Cc: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Gadget: MIPS CI13xxx UDC bugfixesDavid Lopo2009-04-23
| | | | | | | | | | Bug Fix: high speed detection in LPM mode Bug Fix: max packet size configuration when switching between HS and FS Signed-off-by: David Lopo <dlopo@chipidea.mips.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Unusual Device support for Gold MP3 Player EnergyChuck Short2009-04-23
| | | | | | | | | | | | | | | | | | | | | | Reported by Alessio Treglia on https://bugs.launchpad.net/ubuntu/+source/linux/+bug/125250 User was getting the following errors in dmesg: [ 2158.139386] sd 5:0:0:1: ioctl_internal_command return code = 8000002 [ 2158.139390] : Current: sense key: No Sense [ 2158.139393] Additional sense: No additional sense information Adds unusual device support. modified: drivers/usb/storage/unusual_devs.h Signed-off-by: Chuck Short <zulcss@ubuntu.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Signed-off-by: Stefan Bader <stefan.bader@canonical.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: serial: fix lifetime and locking problemsAlan Stern2009-04-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as1229) fixes a few lifetime and locking problems in the usb-serial driver. The main symptom is that an invalid kevent is created when the serial device is unplugged while a connection is active. Ports should be unregistered when device is disconnected, not when the parent usb_serial structure is deallocated. Each open file should hold a reference to the corresponding port structure, and the reference should be released when the file is closed. serial->disc_mutex should be acquired in serial_open(), to resolve the classic race between open and disconnect. serial_close() doesn't need to hold both serial->disc_mutex and port->mutex at the same time. Release the subdriver's module reference only after releasing all the other references, in case one of the release routines needs to invoke some code in the subdriver module. Replace a call to flush_scheduled_work() (which is prone to deadlocks) with cancel_work_sync(). Also, add a call to cancel_work_sync() in the disconnect routine. Reduce the scope of serial->disc_mutex in serial_disconnect(). The only place it really needs to protect is where the "disconnected" flag is set. This fixes the bug reported in http://bugs.freedesktop.org/show_bug.cgi?id=20703 Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Dan Williams <dcbw@redhat.com> Tested-by: Ming Lei <tom.leiming@gmail.com> Reviewed-by: Oliver Neukum <oliver@neukum.org> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* WUSB: correct format of wusb_chid sysfs fileDavid Vrabel2009-04-17
| | | | | | | | | | | Make the wusb_chid sysfs file match the ABI documentation. Print all zeros if the WUSB host is stopped (instead of an empty file) and end the file with a newline. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* WUSB: fix oops when completing URBs for disconnected devicesDavid Vrabel2009-04-17
| | | | | | | | | Fix an oops in wusbhc_giveback_urb() if the wusb device had disconnected while an urb was in progress. Also release the ref count obtained here. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* WUSB: disconnect all devices when stopping a WUSB HCDDavid Vrabel2009-04-17
| | | | | | | | | Make sure all WUSB devices are disconnected when stopping a WUSB HCD so that we don't leak the devices' wusb_dev structures. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: whci-hcd: check return value of usb_hcd_link_urb_to_ep()David Vrabel2009-04-17
| | | | | | | | | | | | | Check the return value of usb_hcd_link_urb_to_ep() and do not add the urb to the ASL/PZL if it returns an error. Omitting the check results in urbs that appear to be submitted successfully but then cannot be unliked (because usb_hcd_check_unlink_urb() returns an error). This can cause khubd (for example) to block forever in usb_kill_urb(). Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: whci-hcd: provide a endpoint_reset methodDavid Vrabel2009-04-17
| | | | | | | | | Provide a endpoint_reset method to reset sequence number and current window. This QHead information can only be changed while the qset is not in a schedule. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: add reset endpoint operationsDavid Vrabel2009-04-17
| | | | | | | | | | | | | | | | | | Wireless USB endpoint state has a sequence number and a current window and not just a single toggle bit. So allow HCDs to provide a endpoint_reset method and call this or clear the software toggles as required (after a clear halt, set configuration etc.). usb_settoggle() and friends are then HCD internal and are moved into core/hcd.h and all device drivers call usb_reset_endpoint() instead. If the device endpoint state has been reset (with a clear halt) but the host endpoint state has not then subsequent data transfers will not complete. The device will only work again after it is reset or disconnected. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB device codes for Motorola phone.Dr. Greg Wettstein2009-04-17
| | | | | | | | | | | | The v950 appears to be a ruggedized version of the Motorola Razor phone. Tethering to the phone to use it in 'phone as modem' mode requires the use of the specialized moto-modem driver which layers over the usb-serial driver. Support for the v950 was added simply adding the device ID's for the phone. Signed-off-by: Dr. Greg Wettstein <greg@enjellic.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb-storage: fix mistake in MakefileAlan Stern2009-04-17
| | | | | | | | | | | | | | | This patch (as1228) fixes a Makefile error introduced when the subdrivers in usb-storage were split out into separate modules. The intention is that when CONFIG_USB_LIBUSUAL is set, libusual.o and usual-tables.o should be combined into a single object file (called usb-libusual). The current Makefile will instead create two separate objects, and the result won't load properly. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-and-tested-by: Alan Jenkins <sourcejedi.lkml@googlemail.com> Reported-and-tested-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usb-serial ch341: support for DTR/RTS/CTSWerner Cornelius2009-04-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 664d5df92e88b6ef091048a802b3750f4e989180 upstream. Fixup of Werner Cornelius patch to the ch341 USB-serial driver, which adds: - support all baudrates, not just a hard-coded set - support for controlling DTR, RTS and CTS Features still missing: - character length other than 8 bits - parity settings - break control I adapted his patch for the new usb_serial API introduced in 2.6.25-git8 by Alan Cox on 22 July 2008. Non-compliance to the new API was a reason for refusing a similar patch from Tollef Fog Heen. Usage example by Tollef Fog Heen : TEMPer USB thermometer <http://err.no/src/TEMPer.c> based on a patch by: From: Tollef Fog Heen <tfheen@err.no> * Implement support for all baud rates rather than just a hard coded set. * Make it possible to control status and control lines * Grab a bunch of #defines from FreeBSD to reduce the number of magic numbers in the file Signed-off-by: Werner Cornelius <Werner.Cornelius@cornelius-consult.de> Signed-off-by: Boris Hajduk <boris@hajduk.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Tollef Fog Heen <tfheen@err.no> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Revert USB: usb-serial ch341: support for DTR/RTS/CTSGreg Kroah-Hartman2009-04-17
| | | | | | | | | | | | Reverts commit 664d5df92e88b6ef091048a802b3750f4e989180 as the commit log information was not complete, and we didn't have a proper signed-off-by by the author of the original BSD code. Cc: Werner Cornelius <Werner.Cornelius@cornelius-consult.de> Cc: Boris Hajduk <boris@hajduk.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: musb: fix possible panic while resumingKim Kyuwon2009-04-17
| | | | | | | | | | During driver resume processing, musb could cause a kernel panic. Fix by enabling the clock earlier, with the resume_early method. Signed-off-by: Kim Kyuwon <q1.kim@samsung.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: musb: fix isochronous TXDMA (take 2)Sergei Shtylyov2009-04-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Multi-frame isochronous TX URBs transfers in DMA mode never complete with CPPI DMA because musb_host_tx() doesn't restart DMA on the second frame, only emitting a debug message. With Inventra DMA they complete, but in PIO mode. To fix: - Factor out programming of the DMA transfer from musb_ep_program() into musb_tx_dma_program(); - Reorder the code at the end of musb_host_tx() to facilitate the fallback to PIO iff DMA fails; - Handle the buffer offset consistently for both PIO and DMA modes; - Add an argument to musb_ep_program() for the same reason (it only worked correctly with non-zero offset of the first frame in PIO mode); - Set the completed isochronous frame descriptor's 'actual_length' and 'status' fields correctly in DMA mode. Also, since CPPI reportedly doesn't like sending isochronous packets in the RNDIS mode, change the criterion for this mode to be used only for multi-packet transfers. (There's no need for that mode in the single-packet case anyway.) [ dbrownell@users.sourceforge.net: split comment paragraph into bullet list, shrink patch delta, style tweaks ] Signed-off-by: Pavel Kiryukhin <pkiryukhin@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: musb: sanitize clearing TXCSR DMA bits (take 2)Sergei Shtylyov2009-04-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MUSB code clears TXCSR_DMAMODE incorrectly in several places, either asserting that TXCSR_DMAENAB is clear (when sometimes it isn't) or clearing both bits together. Recent versions of the programmer's guide require DMAENAB to be cleared first, although some older ones didn't. Fix this and while at it: - In musb_gadget::txstate(), stop clearing the AUTOSET and DMAMODE bits for the CPPI case since they never get set anyway (the former bit is reserved on DaVinci); but do clear the DMAENAB bit on the DMA error path. - In musb_host::musb_ep_program(), remove the duplicate DMA controller specific code code clearing the TXCSR previous state, add the code to clear TXCSR DMA bits on the Inventra DMA error path, to replace such code (executed late) on the PIO path. - In musbhsdma::dma_channel_abort()/dma_controller_irq(), add/use the 'offset' variable to avoid MUSB_EP_OFFSET() invocations on every RXCSR/TXCSR access. [dbrownell@users.sourceforge.net: don't introduce CamelCase, shrink diff] Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: musb: bugfixes for multi-packet TXDMA supportSergei Shtylyov2009-04-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We really want to use DMA mode 1 for all multi-packet transfers; that's one IRQ on DMA completion, instead of one per packet. There is an important issue with such transfers, especially on the host side: when such transfers end with a full-size packet, we must defer musb_dma_completion() calls until the FIFO empties. Else we report URB completions too soon, and may clobber data in the FIFO fifo when writing the next packet (losing data). The Inventra DMA support uses DMA mode 1, but it ignores that issue. The CPPI DMA support uses mode 0, but doesn't handle its TXPKTRDY interrupts quite right either; it can get stale "packet ready" interrupts, and report transfer completion too early using slightly different code paths, also losing data. So I'm solving it in a generic way -- by adding a sort of the "interrupt filter" into musb_host_tx(), catching these cases where a DMA completion IRQ doesn't suffice and removing some needlessly controller-specific logic. When a TXDMA interrupt happens and DMA request mode 1 is active, that filter resets to mode 0 and defers URB completion processing until TXPKTRDY, unless the FIFO is already empty. Related filtering logic in Inventra and CPPI code gets removed. Since it should be competely safe now to use the DMA request mode 1 for host side transfers with the CPPI DMA controller, set it in musb_h_tx_dma_start() ... now renamed (and shared). [ dbrownell@users.sourceforge.net: don't introduce more CamElCase; use more concise explanations ] Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: musb_host, fix ep0 fifo flushingDavid Brownell2009-04-17
| | | | | | | | | | | | | | | | The MUSB host side can't share generic TX FIFO flush logic with EP0; the EP0 TX status register bits are different from those for other entpoints. Resolve this issue by providing a new EP0-specific routine to flush and reset the FIFO, which pays careful attention to restrictions listed in the latest programmer's guide. This gets rid of an open issue whereby the usbtest control write test (#14) failed. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usb-storage: augment unusual_devs entry for Simple Tech/DatafabAlan Stern2009-04-17
| | | | | | | | | | | | This patch (as1227) adds the MAX_SECTORS_64 flag to the unusual_devs entry for the Simple Tech/Datafab controller. This fixes Bugzilla #12882. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-and-tested-by: binbin <binbinsh@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: musb_host, minor enqueue locking fix (v2)David Brownell2009-04-17
| | | | | | | | | | Someone noted that the enqueue path used an unlocked access for usb_host_endpoint->hcpriv ... fix that, by being safe and always accessing it under spinlock protection. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix oops in cdc-wdm in case of malformed descriptorsOliver Neukum2009-04-17
| | | | | | | | | | cdc-wdm needs to ignore extremely malformed descriptors. Signed-off-by: Oliver Neukum <oliver@neukum.org> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: qcserial: Add extra device IDsMatthew Garrett2009-04-17
| | | | | | | | | | | Add a set of device IDs from the Windows drivers. These aren't complete (there's a couple of cases where a QDL device is identified without the associated modem being identified), but it's better than the current situation. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: option: Add ids for D-Link DWM-652 3.5G modemPascal Terjan2009-04-17
| | | | | | | | | | | | | | | | | | | This patch allows D-Link DWM-652 3.5G modem to work. It is an express card but was only tested with the provided usb adapter as I don't have machines with express card connector. /dev/ttyUSB{0,1,2} get created, and using comgt on ttyUSB1 works fine : [root@plop tmp]# comgt -d /dev/ttyUSB1 -e Enter PIN number: XXXX Waiting for Registration..(120 sec max). Registered on Home network: "Orange France",2 Signal Quality: 15,99 From: Pascal Terjan <pterjan@mandriva.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ftdi_sio: add vendor/project id for JETI specbos 1201 spectrometerPeter Korsgaard2009-04-17
| | | | | | | Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb gadget: fix ethernet link reports to ethtoolJonathan McDowell2009-04-17
| | | | | | | | | | | | | | | The g_ether USB gadget driver currently decides whether or not there's a link to report back for eth_get_link based on if the USB link speed is set. The USB gadget speed is however often set even before the device is enumerated. It seems more sensible to only report a "link" if we're actually connected to a host that wants to talk to us. The patch below does this for me - tested with the PXA27x UDC driver. Signed-off-by: Jonathan McDowell <noodles@earth.li> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* tty: Fix leak in ti-usbAlan Cox2009-04-14
| | | | | | | | | | | If the ti-usb adapter returns an zero data length frame (which happens) then we leak a kref. Found by Christoph Mair <christoph.mair@gmail.com> who proposed a patch. The patch here is different as Christoph's patch didn't work for the case where tty = NULL and data arrived but Christoph did all the hard work chasing it down. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* cdc-acm: Fix long standing abuse of tty->low_latencyAlan Cox2009-04-14
| | | | | | | | | | | | | | ACM sets the low latency flag but calls the flip buffer routines from IRQ context which isn't permitted (and as of 2.6.29 causes a warning hence this one was caught) Fortunatelt ACM doesn't need to set this flag in the first place as it only set it to work around problems in ancient (pre tty flip rewrite) kernels. Reported-by: Chuck Ebbert <cebbert@redhat.com> Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Replace all DMA_nBIT_MASK macro with DMA_BIT_MASK(n)Yang Hongyang2009-04-13
| | | | | | | | | | | | | | | | This is the second go through of the old DMA_nBIT_MASK macro,and there're not so many of them left,so I put them into one patch.I hope this is the last round. After this the definition of the old DMA_nBIT_MASK macro could be removed. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Tony Lindgren <tony@atomide.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Greg KH <greg@kroah.com> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2009-04-08
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5446/1: ohci-at91: Limit vbus_pin assignment to the size of the array [ARM] 5445/1: AT91: Remove flexible array from USBH platform data [ARM] 5447/1: Add SZ_32K [ARM] omap: fix omap1 clock usecount decrement bug [ARM] pxa: register AC97 controller devices [ARM] pxa/csb701: do not register devices on non-csb726 boads [ARM] pxa/colibri: get rid of set_irq_type() [ARM] pxa/colibri: provide MAC address from ATAG_SERIAL [ARM] pxa/cm-x2xx: fix ucb1400 not being registered [ARM] pxa: Add support for suspend on PalmTX, T5 and LD [ARM] pxa: PalmTE2 support for battery, UDC, IrDA and backlight [ARM] pxa: Palm Tungsten E2 basic support [ARM] pxa/em-x270: add libertas device registration [ARM] pxa/magician: Enable bq24022 regulator for gpio_vbus and pda_power
| * [ARM] 5446/1: ohci-at91: Limit vbus_pin assignment to the size of the arrayJustin Waters2009-04-08
| | | | | | | | | | | | | | | | | | | | Currently, the vbus_pin assignment loop is limited by the value of the "ports" variable in the platform data. Now that the vbus_pin array is no longer flexible, we can use its actual size. Signed-off-by: Justin Waters <justin.waters@timesys.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | dma-mapping: replace all DMA_31BIT_MASK macro with DMA_BIT_MASK(31)Yang Hongyang2009-04-07
| | | | | | | | | | | | | | | | Replace all DMA_31BIT_MASK macro with DMA_BIT_MASK(31) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)Yang Hongyang2009-04-07
| | | | | | | | | | | | | | | | Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)Yang Hongyang2009-04-07
| | | | | | | | | | | | | | | | Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | symbol: Remove various bits of left over junkAlan Cox2009-04-06
| | | | | | | | | | | | | | | | | | | | | | | | There are various bits of code here that are unfinished and instead of being harmless either confuse or spew stuff into the logs at higher than debug level. They can and should go away. Also remove the bogus use of tty->lowlatency. We fixed the need for this hack long ago (with the flip buffer rewrite) but people keep copying it into drivers. Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | tty: pl2303 needs identifiers for Siemens S81 as well as EF81Alan Cox2009-04-06
| | | | | | | | | | | | | | Closes bug 9065 Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | cdc-acm: zydas 1602 identifier neededAlan Cox2009-04-06
| | | | | | | | | | | | | | Bugzilla #9095 and a couple of other confirmations Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | usb: Auto-load cdc_acm module when device opened.Scott James Remnant2009-04-06
|/ | | | | | | | | | | The cdc_acm module is missing the char-major-166-* alias that would cause it to be auto-loaded when a device of that type is opened. This patch adds the alias. Signed-off-by: Scott James Remnant <scott@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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