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2014-11-06USB: cdc-acm: add quirk for control-line state requestsJohan Hovold
Add new quirk for devices that cannot handle control-line state requests. Note that we currently send these requests to all devices, regardless of whether they claim to support it, but that errors are only logged if support is claimed. Since commit 0943d8ead30e ("USB: cdc-acm: use tty-port dtr_rts"), which only changed the timings for these requests slightly, this has been reported to cause occasional firmware crashes on Simtec Electronics Entropy Key devices after re-enumeration. Enable the quirk for this device. Reported-by: Nix <nix@esperi.org.uk> Tested-by: Nix <nix@esperi.org.uk> Cc: stable <stable@vger.kernel.org> # v3.16 Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-06Merge tag 'fixes-for-v3.18-rc4' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus Felipe writes: usb: fixes for v3.18-rc4 A single fix this for dwc2 this time. Because of excessive debugging messages, dwc2 would sometimes fail enumeration. The fix is simple, just converting a dev_info() into dev_dbg(). Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-06Merge tag 'usb-serial-3.18-rc4' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus Johan writes: USB-serial fixes for v3.18-rc4 Two fixes of non-atomic allocations in write paths. Signed-off-by: Johan Hovold <johan@kernel.org>
2014-11-05usb: phy: remove file names from heading commentsSergei Shtylyov
File names in the heading comments fell out of favor long ago, and these weren't even changed when the drivers were moved from drivers/usb/otg/, so remove them at last... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05USB: storage: Fix timeout in usb_stor_euscsi_init() and ↵Mark Knibbs
usb_stor_huawei_e220_init() The timeout argument to usb_stor_control_msg() is specified in jiffies, not milliseconds. Signed-off-by: Mark Knibbs <markk@clara.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-05usb: gadget: f_midi: add configfs supportAndrzej Pietrasiewicz
Make the midi function available for gadgets composed with configfs. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: gadget: f_midi: use usb_gstrings_attachAndrzej Pietrasiewicz
In order to add configfs support the usb_gstrings_attach must be used. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: gadget: f_midi: remove compatibility layerAndrzej Pietrasiewicz
There are no old f_midi interface users left, so remove it. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: gadget: midi: convert to new interface of f_midiAndrzej Pietrasiewicz
Use the new f_midi interface so that the old can be removed. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: gadget: f_midi: convert to new function interface with backward ↵Andrzej Pietrasiewicz
compatibility Converting midi to the new function interface requires converting the USB midi's function code and its users. This patch converts the f_midi.c to the new function interface. The file can now be compiled into a separate usb_f_midi.ko module. The old function interface is provided by means of a preprocessor conditional directives. After all users are converted, the old interface can be removed. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: gadget: f_midi: check kstrdup() return valueAndrzej Pietrasiewicz
kstrdup() might fail, so check its return value and react appropriately. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: gadget: f_midi: enable use of the index parameterAndrzej Pietrasiewicz
The soundcard index to use for the ALSA device creation is passed as a parameter to f_midi_bind_config(), but is assigned to midi->index only after the call to f_midi_register_card(midi). So no matter what is passed to f_midi_bind_config(), the actual index for snd_card_new() is always 0. This probably works ok if at the moment of f_midi's bind there are no other snd_cards, but if there are, it is not possible to bind f_midi. This patch moves the assignment to a place before the call to f_midi_register_card(midi). Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: gadget: Kconfig: enable separate compilation of uac1/uac2 functionsAndrzej Pietrasiewicz
uac1 and uac2 functions are available through the configfs interface and it should be possible to build them without building their legacy gadgets. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: dwc3: ep0: remove unnecessary break after returnJingoo Han
Fix the following checkpatch warning. WARNING: break is not useful after a goto or return Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: musb: try a race-free wakeupSebastian Andrzej Siewior
Attaching a keyboard, using it as a wakeup via |for f in $(find /sys/devices/ocp.3/47400000.usb -name wakeup) |do | echo enabled > $f |done going into standby | echo standby > /sys/power/state and now a wake up by a pressing a key. What happens is that the system wakes up but the USB device is dead. The USB stack tries to send a few control URBs but nothing comes back. Eventually it gaves up and the device remains dead: |[ 632.559678] PM: Wakeup source USB1_PHY |[ 632.581074] PM: noirq resume of devices complete after 21.261 msecs |[ 632.607521] PM: early resume of devices complete after 10.360 msecs |[ 632.616854] net eth2: initializing cpsw version 1.12 (0) |[ 632.704126] net eth2: phy found : id is : 0x4dd074 |[ 636.704048] libphy: 4a101000.mdio:00 - Link is Up - 1000/Full |[ 638.444620] usb 1-1: reset low-speed USB device number 2 using musb-hdrc |[ 653.713435] usb 1-1: device descriptor read/64, error -110 |[ 669.093435] usb 1-1: device descriptor read/64, error -110 |[ 669.473424] usb 1-1: reset low-speed USB device number 2 using musb-hdrc |[ 684.743436] usb 1-1: device descriptor read/64, error -110 |[ 690.065097] PM: resume of devices complete after 57450.744 msecs |[ 690.076601] PM: Finishing wakeup. |[ 690.076627] Restarting tasks ... It seems that since we got woken up via MUSB_INTR_RESUME the musb_host_finish_resume() callback is executed before the resume-callbacks of the PHY and glue layer are invoked. If I delay it until the glue layer resumed then I don't see this problem. I also move musb_host_resume_root_hub() into that callback since I don't see any reason in doing anything resume-link if there are still pieces not restored. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05USB: cdc-acm: only raise DTR on transitions from B0Johan Hovold
Make sure to only raise DTR on transitions from B0 in set_termios. Also allow set_termios to be called from open with a termios_old of NULL. Note that DTR will not be raised prematurely in this case. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-05usb: musb: core: check link status on resumeSebastian Andrzej Siewior
The am335x-evmsk support two kinds of suspend: - standby the USB device remains powered while the system goes into suspend - mem the USB device becomes powerless while the system goes into suspend. In the "standby" case the device resumes quickly. In the "mem" case the system hangs for a few seconds. It seems to me that the USB-device has no address (it was disconnected) and the USB stack thinks that it is fully operational and GetPortStatus returns the status from before the suspend so it is not a big help here. This adds a check in the resume path to see if the device mode (A or B) and the speed is the same. If the device went missing between suspend/resume (VBUS went down) then MUSB seems to go into B mode and HS/FS bits are cleared. In that case we clear the port1_status bits and assume a disconnect. Once the stack learns this it does a "logical disconnect" and removes the USB-device quickly. Should the device remain connected during the suspend then MUSB will receives a "CONNECT" interrupt. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: dwc3: exynos: remove non-DT support for Exynos Specific Glue layerJingoo Han
DWC3 Exynos Specific Glue layer can be used only for Exynos SoCs. In addition, non-DT for EXYNOS SoCs is not supported from v3.11; thus, there is no need to support non-DT for DWC3 Exynos Specific Glue layer. The 'linux/platform_data/dwc3-exynos.h' file has been used for non-DT support. Thus, the 'dwc3-exynos.h' file is removed, because it is not used anymore. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: renesas_usbhs: fix usbhs_pipe_clear() for DCP PIPEYoshihiro Shimoda
Since the DCPCTR doesn't have the ACLRM bit, the usbus_pipe_clear() should not call the usbhsp_pipectrl_set() with ACLRM. So, this patch fixes this issue to add the usbhs_fifo_clear_dcp() in fifo.c because the controller needs the CFIFO to clear the the DCP PIPE. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: renesas_usbhs: fix the timing of dcp_control_transfer_doneYoshihiro Shimoda
According to the datasheet, this driver should clear the INTSTS0.CTRT bit before this controller detects the next stage transition. Otherwise, the driver may not be able to clear the bit after the controller went to the next stage transition. After that, the driver will not be able to clear the INTSTS0.VALID, and a usb control transfer will not finish finally. If we use the testusb tool, it is easy to reproduce this issue: # testusb -a -t 10 Since the previous code handled a data stage and a status stage in the usbhsf_pio_try_push(), it may not clear the INTSTS0.CTRT at the right timing. So, this patch change the timing of usbhs_dcp_control_transfer_done() to the usbhsg_irq_ctrl_stage(). Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: renesas_usbhs: gadget: fix the behavior of pullupTakeshi Kihara
This patch fixes an issue that this driver always enable the D+ pullup after it detected the VBUS connection even though this usb controller can control the D+ pullup timing by software. So, this driver should enable the D+ pullup after a gadget driver called usb_gadget_connect(). Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05usb: renesas_usbhs: gadget: fix NULL pointer dereference in ep_disable()Kazuya Mizuguchi
This patch fixes an issue that the NULL pointer dereference happens when we uses g_audio driver. Since the g_audio driver will call usb_ep_disable() in afunc_set_alt() before it calls usb_ep_enable(), the uep->pipe of renesas usbhs driver will be NULL. So, this patch adds a condition to avoid the oops. Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com> Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Fixes: 2f98382dc (usb: renesas_usbhs: Add Renesas USBHS Gadget) Cc: <stable@vger.kernel.org> # v3.0+ Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05Revert "storage: Replace magic number with define in usb_stor_euscsi_init()"Greg Kroah-Hartman
This reverts commit bda9893c50fb56253d3c206c14e3f933e5f68b3c as it was incorrect. Reported-by: Mark Knibbs <markk@clara.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-04USB: serial: add Google simple serial SubClass supportAnton Staaf
Add support for Google devices that export simple serial interfaces using the vendor specific SubClass/Protocol pair 0x50/0x01. Signed-off-by: Anton Staaf <robotboy@chromium.org> Reviewed-by: Benson Leung <bleung@chromium.org> [johan: move id entries and update Kconfig] Signed-off-by: Johan Hovold <johan@kernel.org>
2014-11-03Merge branch 'platform/remove_owner' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next Remove all .owner fields from platform drivers
2014-11-03usb: core: notify disconnection when core detects disconnectPeter Chen
It is safe to call notify disconnect when the usb core thinks the device is disconnected. This commit also fixes one bug found at below situation: we have not enabled usb wakeup, we do system suspend when there is an usb device at the port, after suspend, we plug out the usb device, then plug in device again. At that time, the nofity disconnect was not called at current code, as the controller doesn't know the usb device was disconnected during the suspend, but USB core knows the port has changed during that periods. So to fix this problem, and let the usb core call notify disconnect. Cc: 3.17+ <stable@vger.kernel.org> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: core: need to call usb_phy_notify_connect after device setupTony Zheng
Since we notify disconnecting based on the usb device is existed (port_dev->child, the child device at roothub is not NULL), we need to notify connect after device has been registered. This fixes a bug that do fast plug in/out test, and the notify_disconnect is not called due to roothub child is NULL and the enumeration has failed. Cc: v3.17+ <stable@vger.kernel.org> Signed-off-by: Tony Zheng <Tony.Zheng@freescale.com> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03uas: Add US_FL_NO_ATA_1X quirk for 2 more Seagate modelsHans de Goede
These drives hang when receiving ATA12 commands, so set the US_FL_NO_ATA_1X quirk to filter these out. Cc: stable@vger.kernel.org # 3.16 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03xhci: no switching back on non-ULT HaswellOliver Neukum
The switch back is limited to ULT even on HP. The contrary finding arose by bad luck in BIOS versions for testing. This fixes spontaneous resume from S3 on some HP laptops. Signed-off-by: Oliver Neukum <oneukum@suse.de> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: renesas_usbhs: delete unnecessary 'out of memory' messagesPeter Chen
The memory subsystem has already had similar message for it. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: misc: usb3503: delete unnecessary 'out of memory' messagesPeter Chen
The memory subsystem has already had similar message for it. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: host: oxu210hp-hcd: delete unnecessary 'out of memory' messagesPeter Chen
The memory subsystem has already had similar message for it. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: host: ehci-tegra: delete unnecessary 'out of memory' messagesPeter Chen
The memory subsystem has already had similar message for it. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: host: ehci-sh: delete unnecessary 'out of memory' messagesPeter Chen
The memory subsystem has already had similar message for it. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: host: ehci-mv: delete unnecessary 'out of memory' messagesPeter Chen
The memory subsystem has already had similar message for it. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: class: usbtmc: delete unnecessary 'out of memory' messagesPeter Chen
The memory subsystem has already had similar message for it. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: chipidea: otg_fsm: delete unnecessary 'out of memory' messagesPeter Chen
The memory subsystem has already had similar message for it. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: ehci/ohci-platform: use SIMPLE_DEV_PM_OPS to support hibernationWonhong Kwon
ehci/ohci-platform just define .suspend/.resume functions for dev_pm_ops, but in order to support both STR(suspend-to-ram) and hibernation, other callbacks such as .freeze/.thaw are also required. Registering all required callbacks for both STR and hibernation can be done by SIMPLE_DEV_PM_OPS macro function. Signed-off-by: Wonhong Kwon <wonhong.kwon@lge.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03USB: imx21-hcd: use %pad for dma_addr_tJingoo Han
Use %pad for dma_addr_t, because a dma_addr_t type can vary based on build options. So, it prevents the following build warnings in printks. drivers/usb/host/imx21-hcd.c:1175:2: warning: format '%X' expects argument of type 'unsigned int', but argument 8 has type 'dma_addr_t' [-Wformat] drivers/usb/host/imx21-hcd.c:1175:2: warning: format '%X' expects argument of type 'unsigned int', but argument 10 has type 'dma_addr_t' [-Wformat] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: hub: remove unused variableSudip Mukherjee
the integer variable 'feature' was not being used anywhere in the function. so it is safe to remove the variable. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: storage: Convert usb_stor_dbg to return voidJoe Perches
No caller or macro uses the return value so make it void. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03USB: OHCI: ohci-at91: remove unnecessary headersAlexandre Belloni
Remove unnecessary mach/* headers to be able to converge to a multiplatform kernel. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03USB: ohci-platform: Move platform_data checks into the probe functionKevin Cernekee
This puts all of the platform_data checks in the same place, and removes the need for a custom drv->reset() callback. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03USB: ohci-platform: Expose no_big_frame_no and num_ports in DTKevin Cernekee
These quirks are currently set through platform_data; allow DT-based SoCs to use them too. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03USB: OHCI: Eliminate platform-specific test in ohci.hKevin Cernekee
The bcm63xx and bcm3384 platforms need to set OHCI_QUIRK_FRAME_NO, but they are non-PPC platforms and don't enable CONFIG_PPC_MPC52xx. Therefore this patch changes the code that uses OHCI_QUIRK_FRAME_NO, making it not depend on CONFIG_PPC_MPC52xx. Also, rephrase the comments describing OHCI_QUIRK_FRAME_NO and the related PSW endian swap. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: chipidea: host: add portpower overrideMichael Grzeschik
This patch adds an external portpower override callback, only single port regulator control is supported now. Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: ehci: add ehci_port_power interfaceMichael Grzeschik
The current EHCI implementation is prepared to toggle the PORT_POWER bit to enable or disable a USB-Port. In some cases this port power can not be just toggled by the PORT_POWER bit, and the gpio-regulator is needed to be toggled too. This patch defines a port power control interface ehci_port_power for ehci core use, it toggles PORT_POWER bit as well as calls platform defined .port_power if it is defined. Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Peter Chen <peter.chen@freescale.com> Acked-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03uas: Make uas work with blk-mqHans de Goede
With uas over usb-3 the tags inside the uas iu-s must match the usb-3 stream ids, and those go from 1 - qdepth. Before blk-mq calling scsi_activate_tcq(sdev, qdepth) guaranteed that we would only get cmnd->request->tag from 0 - (qdepth - 1), and we used those as uas-tags / stream-ids. With blk-mq however we are guaranteed to never get more then qdepth commands queued at the same time, but the cmnd->request->tag values may be much larger, which breaks uas. This commit fixes this by generating uas tags in the 1 - qdepth range ourselves instead of using cmnd->request->tag. While touching all involved code anyways also rename the uas_cmd_info stream field to uas_tag, because when using uas over usb-2 streams are not used. Cc: Christoph Hellwig <hch@infradead.org> Reported-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> -- Changes in v2: -Remove ".disable_blk_mq = true" from uas_host_template Changes in v3: -Rebased on top of Linus' current master branch Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: yurex: fixed sparse warning of incorrect typeSudip Mukherjee
fixed sparse warning of 1) incorrect type (different address spaces) 2) incorrect type in initializer Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: Do not re-read descriptors for wired devices in usb_authorize_device()Josef Gajdusek
This patch modifies the usb_authorize_device() function such as that it does not reload the device descriptor for wired devices. The reasons for this are as follows: * Some devices dislike the master requesting the descriptor from them twice, failing on the usb_get_device_descriptor() call with -ETIMEOUT. Observed this on my Pretec 16GB flash drive (4146:ba65). * Malicious device could send two different descriptors - one before authorization, used by userspace to determine whether to authorize it and second to be actually used by the kernel when determining which drivers to bind. Signed-off-by: Josef Gajdusek <atx@atx.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>