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path: root/drivers/usb/core
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2016-02-19usb: hub: do not clear BOS field during reset deviceDu, Changbin
commit d8f00cd685f5c8e0def8593e520a7fef12c22407 upstream. In function usb_reset_and_verify_device, the old BOS descriptor may still be used before allocating a new one. (usb_unlocked_disable_lpm function uses it under the situation that it fails to disable lpm.) So we cannot set the udev->bos to NULL before that, just keep what it was. It will be overwrite when allocating a new one. Crash log: BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 IP: [<ffffffff8171f98d>] usb_enable_link_state+0x2d/0x2f0 Call Trace: [<ffffffff8171ed5b>] ? usb_set_lpm_timeout+0x12b/0x140 [<ffffffff8171fcd1>] usb_enable_lpm+0x81/0xa0 [<ffffffff8171fdd8>] usb_disable_lpm+0xa8/0xc0 [<ffffffff8171fe1c>] usb_unlocked_disable_lpm+0x2c/0x50 [<ffffffff81723933>] usb_reset_and_verify_device+0xc3/0x710 [<ffffffff8172c4ed>] ? usb_sg_wait+0x13d/0x190 [<ffffffff81724743>] usb_reset_device+0x133/0x280 [<ffffffff8179ccd1>] usb_stor_port_reset+0x61/0x70 [<ffffffff8179cd68>] usb_stor_invoke_transport+0x88/0x520 Signed-off-by: Du, Changbin <changbin.du@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-31usb: core: lpm: fix usb3_hardware_lpm sysfs nodeLu Baolu
commit bf5ce5bf3cc7136fd7fe5e8999a580bc93a9c8f6 upstream. Commit 655fe4effe0f ("usbcore: add sysfs support to xHCI usb3 hardware LPM") introduced usb3_hardware_lpm sysfs node. This doesn't show the correct status of USB3 U1 and U2 LPM status. This patch fixes this by replacing usb3_hardware_lpm with two nodes, usb3_hardware_lpm_u1 (for U1) and usb3_hardware_lpm_u2 (for U2), and recording the U1/U2 LPM status in right places. This patch should be back-ported to kernels as old as 4.3, that contains Commit 655fe4effe0f ("usbcore: add sysfs support to xHCI usb3 hardware LPM"). Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-31USB: fix invalid memory access in hub_activate()Alan Stern
commit e50293ef9775c5f1cf3fcc093037dd6a8c5684ea upstream. Commit 8520f38099cc ("USB: change hub initialization sleeps to delayed_work") changed the hub_activate() routine to make part of it run in a workqueue. However, the commit failed to take a reference to the usb_hub structure or to lock the hub interface while doing so. As a result, if a hub is plugged in and quickly unplugged before the work routine can run, the routine will try to access memory that has been deallocated. Or, if the hub is unplugged while the routine is running, the memory may be deallocated while it is in active use. This patch fixes the problem by taking a reference to the usb_hub at the start of hub_activate() and releasing it at the end (when the work is finished), and by locking the hub interface while the work routine is running. It also adds a check at the start of the routine to see if the hub has already been disconnected, in which nothing should be done. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Alexandru Cornea <alexandru.cornea@intel.com> Tested-by: Alexandru Cornea <alexandru.cornea@intel.com> Fixes: 8520f38099cc ("USB: change hub initialization sleeps to delayed_work") CC: <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-22usb: Use the USB_SS_MULT() macro to decode burst multiplier for log messageBen Hutchings
commit 5377adb092664d336ac212499961cac5e8728794 upstream. usb_parse_ss_endpoint_companion() now decodes the burst multiplier correctly in order to check that it's <= 3, but still uses the wrong expression if warning that it's > 3. Fixes: ff30cbc8da42 ("usb: Use the USB_SS_MULT() macro to get the ...") Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-22usb: core : hub: Fix BOS 'NULL pointer' kernel panicHans Yang
commit 464ad8c43a9ead98c2b0eaed86bea727f2ad106e upstream. When a USB 3.0 mass storage device is disconnected in transporting state, storage device driver may handle it as a transport error and reset the device by invoking usb_reset_and_verify_device() and following could happen: in usb_reset_and_verify_device(): udev->bos = NULL; For U1/U2 enabled devices, driver will disable LPM, and in some conditions: from usb_unlocked_disable_lpm() --> usb_disable_lpm() --> usb_enable_lpm() udev->bos->ss_cap->bU1devExitLat; And it causes 'NULL pointer' and 'kernel panic': [ 157.976257] Unable to handle kernel NULL pointer dereference at virtual address 00000010 ... [ 158.026400] PC is at usb_enable_link_state+0x34/0x2e0 [ 158.031442] LR is at usb_enable_lpm+0x98/0xac ... [ 158.137368] [<ffffffc0006a1cac>] usb_enable_link_state+0x34/0x2e0 [ 158.143451] [<ffffffc0006a1fec>] usb_enable_lpm+0x94/0xac [ 158.148840] [<ffffffc0006a20e8>] usb_disable_lpm+0xa8/0xb4 ... [ 158.214954] Kernel panic - not syncing: Fatal exception This commit moves 'udev->bos = NULL' behind usb_unlocked_disable_lpm() to prevent from NULL pointer access. Issue can be reproduced by following setup: 1) A SS pen drive behind a SS hub connected to the host. 2) Transporting data between the pen drive and the host. 3) Abruptly disconnect hub and pen drive from host. 4) With a chance it crashes. Signed-off-by: Hans Yang <hansy@nvidia.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-22USB: add quirk for devices with broken LPMAlan Stern
commit ad87e03213b552a5c33d5e1e7a19a73768397010 upstream. Some USB device / host controller combinations seem to have problems with Link Power Management. For example, Steinar found that his xHCI controller wouldn't handle bandwidth calculations correctly for two video cards simultaneously when LPM was enabled, even though the bus had plenty of bandwidth available. This patch introduces a new quirk flag for devices that should remain disabled for LPM, and creates quirk entries for Steinar's devices. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04usb: Add device quirk for Logitech PTZ camerasVincent Palatin
Add a device quirk for the Logitech PTZ Pro Camera and its sibling the ConferenceCam CC3000e Camera. This fixes the failed camera enumeration on some boot, particularly on machines with fast CPU. Tested by connecting a Logitech PTZ Pro Camera to a machine with a Haswell Core i7-4600U CPU @ 2.10GHz, and doing thousands of reboot cycles while recording the kernel logs and taking camera picture after each boot. Before the patch, more than 7% of the boots show some enumeration transfer failures and in a few of them, the kernel is giving up before actually enumerating the webcam. After the patch, the enumeration has been correct on every reboot. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04USB: Add reset-resume quirk for two Plantronics usb headphones.Yao-Wen Mao
These two headphones need a reset-resume quirk to properly resume to original volume level. Signed-off-by: Yao-Wen Mao <yaowen@google.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-21usb: Use the USB_SS_MULT() macro to get the burst multiplier.Mathias Nyman
Bits 1:0 of the bmAttributes are used for the burst multiplier. The rest of the bits used to be reserved (zero), but USB3.1 takes bit 7 into use. Use the existing USB_SS_MULT() macro instead to make sure the mult value and hence max packet calculations are correct for USB3.1 devices. Note that burst multiplier in bmAttributes is zero based and that the USB_SS_MULT() macro adds one. Cc: <stable@vger.kernel.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-18Revert "usb: interface authorization: Introduces the default interface ↵Greg Kroah-Hartman
authorization" This reverts commit 1d958bef45030acfc5578263e9de3bb07032b8da as the signed-off-by address is invalid. Cc: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-18Revert "usb: interface authorization: Control interface probing and claiming"Greg Kroah-Hartman
This reverts commit de7718bd9c4d3db96991a98c2a0cb38258a04e47 as the signed-off-by address is invalid. Cc: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-18Revert "usb: interface authorization: Introduces the USB interface ↵Greg Kroah-Hartman
authorization" This reverts commit ef0909c50fe63be3f9aa09bdf4db7efaa5919be9 as the signed-off-by address is invalid. Cc: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-18Revert "usb: interface authorization: SysFS part of USB interface authorization"Greg Kroah-Hartman
This reverts commit 187b3d75bbfba45a38b5d1d3656c0f11f6f6f2d0 as the signed-off-by address is invalid. Cc: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-18Revert "usb: interface authorization: Use a flag for the default device ↵Greg Kroah-Hartman
authorization" This reverts commit 3cf1fc80655d3af7083ea4b3615e5f8532543be7 as the signed-off-by address is invalid. Cc: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-14usb: core: hub: Removed some warnings generated by checkpatch.plChase Metzger
Removed some checkpatch.pl warnings saying there was an unwanted space between function names and their arguments. Signed-off-by: Chase Metzger <chasemetzger15@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-14usb: interface authorization: Use a flag for the default device authorizationStefan Koch
With this patch a flag instead of a variable is used for the default device authorization. Signed-off-by: Stefan Koch <skoch@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-14usb: interface authorization: SysFS part of USB interface authorizationStefan Koch
This introduces an attribute for each interface to authorize (1) or deauthorize (0) it: /sys/bus/usb/devices/INTERFACE/authorized Signed-off-by: Stefan Koch <skoch@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-14usb: interface authorization: Introduces the USB interface authorizationStefan Koch
The kernel supports the device authorization because of wireless USB. These is usable for wired USB devices, too. These new interface authorization allows to enable or disable individual interfaces instead a whole device. If a deauthorized interface will be authorized so the driver probing must be triggered manually by writing INTERFACE to /sys/bus/usb/drivers_probe Signed-off-by: Stefan Koch <skoch@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-14usb: interface authorization: Control interface probing and claimingStefan Koch
Driver probings and interface claims get rejected if an interface is not authorized. Signed-off-by: Stefan Koch <skoch@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-14usb: interface authorization: Introduces the default interface authorizationStefan Koch
Interfaces are allowed per default. This can disabled or enabled (again) by writing 0 or 1 to /sys/bus/usb/devices/usbX/interface_authorized_default Signed-off-by: Stefan Koch <skoch@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-14usb: hub: remove assignment from if conditionKris Borer
Fix one occurrence of the checkpatch.pl error: ERROR: do not use assignment in if condition The semantic patch that makes this change is: // <smpl> @@ identifier i; expression E, E2, E3; statement S1, S2; binary operator b; @@ + i = E; if ( - (i = E) + i b ... && E2 && E3 ) S1 else S2 // </smpl> Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-14usb: endpoint: convert spaces to tabsKris Borer
Fix one occurrence of the checkpatch error: ERROR: code indent should use tabs where possible Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-14usb: otg_whitelist: remove whitespaceKris Borer
Fix one occurrence of the checkpatch error: ERROR: space prohibited before open square bracket '[' Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-08usb: core: hub.c: Removed some warnings generated by checkpatch.plChase Metzger
Removed some checkpatch.pl warnings saying there was an unwanted space between function names and their arguments. Signed-off-by: Chase Metzger <chasemetzger15@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-08usb: devio: fix spacingKris Borer
Fix two occurrences of the checkpatch.pl error: ERROR: space prohibited before that ',' (ctx:WxW) Fix one occurrence of the checkpatch error: ERROR: space required before the open parenthesis '(' Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-05usb: devio: remove assignment from if conditionKris Borer
Fix five occurrences of the checkpatch.pl error: ERROR: do not use assignment in if condition The semantic patch that makes this change is: // <smpl> @@ identifier i; expression E; statement S1, S2; @@ + i = E; if ( - (i = E) + i ) S1 else S2 @@ identifier i; expression E; statement S; constant c; binary operator b; @@ + i = E; if ( - (i = E) + i b c ) S // </smpl> Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-27Merge 4.2-rc4 into usb-nextGreg Kroah-Hartman
We want the USB fixes that went into that release in this branch as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-22usbcore: add sysfs support to xHCI usb3 hardware LPMKevin Strasser
Add a sysfs node to make it easier to verify if LPM is supported and being enabled for USB 3.0 devices. Signed-off-by: Kevin Strasser <kevin.strasser@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-22usb: move assignment out of if conditionKris Borer
Fix four occurrences of checkpatch.pl error: ERROR: do not use assignment in if condition The semantic patch that makes this change is: // <smpl> @@ identifier i; expression E; statement S; constant c; binary operator b; @@ + i = E; if ( - (i = E) + i b c ) S @@ identifier i, i2; expression E1, E2; constant c; @@ + if( E1->i ) { + i2 = E2; + if (i2 < c) { - if( E1->i && (i2 = E2) < c ) { ... - } + } + } // </smpl> Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-22usb: fix coding style issueKris Borer
Fixed coding style issue: newline after declaration Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-22usb: core: lpm: set lpm_capable for root hub deviceLu Baolu
Commit 25cd2882e2fc ("usb/xhci: Change how we indicate a host supports Link PM.") removed the code to set lpm_capable for USB 3.0 super-speed root hub. The intention of that change was to avoid touching usb core internal field, a.k.a. lpm_capable, and let usb core to set it by checking U1 and U2 exit latency values in the descriptor. Usb core checks and sets lpm_capable in hub_port_init(). Unfortunately, root hub is a special usb device as it has no parent. Hub_port_init() will never be called for a root hub device. That means lpm_capable will by no means be set for the root hub. As the result, lpm isn't functional at all in Linux kernel. This patch add the code to check and set lpm_capable when registering a root hub device. It could be back-ported to kernels as old as v3.15, that contains the Commit 25cd2882e2fc ("usb/xhci: Change how we indicate a host supports Link PM."). Cc: stable@vger.kernel.org # 3.15 Reported-by: Kevin Strasser <kevin.strasser@linux.intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-02Merge tag 'usb-for-v4.2' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next Felipe writes: usb: patches for v4.2 merge window - dwc2 adds hibernation support - preparation for sunxi glue to musb driver - new ULPI bus - new ULPI PHY driver for TUSB1210 - musb patches to support multiple DMA engines on same binary - support for R-Car E2 on renesas_usbhs Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-31usb: core: Fix USB 3.0 devices lost in NOTATTACHED state after a hub port resetRobert Schlabbach
Fix USB 3.0 devices lost in NOTATTACHED state after a hub port reset. Dissolve the function hub_port_finish_reset() completely and divide the actions to be taken into those which need to be done after each reset attempt and those which need to be done after the full procedure is complete, and place them in the appropriate places in hub_port_reset(). Also, remove an unneeded forward declaration of hub_port_reset(). Verbose Problem Description: USB 3.0 devices may be "lost for good" during a hub port reset. This makes Linux unable to boot from USB 3.0 devices in certain constellations of host controllers and devices, because the USB device is lost during initialization, preventing the rootfs from being mounted. The underlying problem is that in the affected constellations, during the processing inside hub_port_reset(), the hub link state goes from 0 to SS.inactive after the initial reset, and back to 0 again only after the following "warm" reset. However, hub_port_finish_reset() is called after each reset attempt and sets the state the connected USB device based on the "preliminary" status of the hot reset to USB_STATE_NOTATTACHED due to SS.inactive, yet when the following warm reset is complete and hub_port_finish_reset() is called again, its call to set the device to USB_STATE_DEFAULT is blocked by usb_set_device_state() which does not allow taking USB devices out of USB_STATE_NOTATTACHED state. Thanks to Alan Stern for guiding me to the proper solution and how to submit it. Link: http://lkml.kernel.org/r/trinity-25981484-72a9-4d46-bf17-9c1cf9301a31-1432073240136%20()%203capp-gmx-bs27 Signed-off-by: Robert Schlabbach <robert_s@gmx.net> Cc: stable <stable@vger.kernel.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24USB: devio: fix a condition in async_completed()Dan Carpenter
Static checkers complain that the current condition is never true. It seems pretty likely that it's a typo and "URB" was intended instead of "USB". Fixes: 3d97ff63f899 ('usbdevfs: Use scatter-gather lists for large bulk transfers') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-18Merge 4.1-rc4 into usb-nextGreg Kroah-Hartman
We want the fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-13usb: add bus type for USB ULPIHeikki Krogerus
UTMI+ Low Pin Interface (ULPI) is a commonly used PHY interface for USB 2.0. The ULPI specification describes a standard set of registers which the vendors can extend for their specific needs. ULPI PHYs provide often functions such as charger detection and ADP sensing and probing. There are two major issues that the bus type is meant to tackle: Firstly, ULPI registers are accessed from the controller. The bus provides convenient method for the controller drivers to share that access with the actual PHY drivers. Secondly, there are already platforms that assume ULPI PHYs are runtime detected, such as many Intel Baytrail based platforms. They do not provide any kind of hardware description for the ULPI PHYs like separate ACPI device object that could be used to enumerate a device from. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: David Cohen <david.a.cohen@linux.intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-10USB: hub.c: move assignment out of if () blockGreg Kroah-Hartman
We should not be doing assignments within an if () block so fix up the code to not do this. change was created using Coccinelle. Acked-by: Alan Stern <stern@rowland.harvard.edu> CC: Dan Williams <dan.j.williams@intel.com> CC: Petr Mladek <pmladek@suse.cz> CC: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Felipe Balbi <balbi@ti.com>
2015-05-10USB: hcd.c: move assignment out of if () blockGreg Kroah-Hartman
We should not be doing assignments within an if () block so fix up the code to not do this. change was created using Coccinelle. Acked-by: Alan Stern <stern@rowland.harvard.edu> CC: Dan Williams <dan.j.williams@intel.com> CC: Antoine Tenart <antoine.tenart@free-electrons.com> CC: Petr Mladek <pmladek@suse.cz> CC: Michal Sojka <sojka@merica.cz> CC: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> CC: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Felipe Balbi <balbi@ti.com>
2015-05-10Usb: core: buffer: fixed the checkpatch warningNizam Haider
Fixed two warnings sizeof name and Blank line after declaration Signed-off-by: Nizam Haider <nizamhaider786@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-09Added another USB product ID for ELAN touchscreen quirks.Logan Gunthorpe
I've had the same issue as described in commit c68929f75dfcb6354918862b91b5778585de1fa5 Except my touchscreen's ID is ID 04f3:0125 Elan Microelectronics Corp. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-08usb: Enable LPM for USB 2.01+ full-speed devicesRupesh Tatiya
USB 2.01+ full-speed devices can have extended descriptor as well and can support LPM. Signed-off-by: Rupesh Tatiya <rtatiya@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-08usb: Set unused ports to "fixed" rather than "unknown"Matthew Garrett
The Microsoft document "Using ACPI to Configure USB Ports on a Computer" makes it clear that the removable flag will be cleared on ports that are marked as unused by the firmware. Handle this case to match. Signed-off-by: Matthew Garrett <mjg59@coreos.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-08usb: Prefer firmware values when determining whether a port is removableMatthew Garrett
Windows appears to pay more attention to the ACPI values than any hub configuration, so prefer the firmware's opinion on whether a port is fixed or removable before falling back to the hub values. Signed-off-by: Matthew Garrett <mjg59@coreos.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-10drivers/usb/core: devio.c: Removed an uneeded space before tabChase Metzger
Ran checkpatch.pl on file and removed a warning about an unwanted space before a tab. Signed-off-by: Chase Metzger <chasemetzger15@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-10Merge tag 'usb-for-v4.1-part2' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-testing Felipe writes: usb: generic resume timeout for v4.1 This part 2 pull request contains only the patches which make sure everybody on linux uses the same resume timeout value. Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-04-07usb: core: hub: use new USB_RESUME_TIMEOUTFelipe Balbi
Make sure we're using the new macro, so our resume signaling will always pass certification. Cc: <stable@vger.kernel.org> # v3.10+ Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-26USB: Move usb_disabled() towards top of the fileViresh Kumar
Move usb_disabled() and module_param()/core_param() towards the top of the file, where 'nousb' is defined, as they are all related. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-26USB: Use usb_disabled() consistentlyViresh Kumar
At few places we have used usb_disabled() and at other places used 'nousb' directly. Lets be consistent and use usb_disabled(); Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-24USB: usbfs: don't leak kernel data in siginfoAlan Stern
When a signal is delivered, the information in the siginfo structure is copied to userspace. Good security practice dicatates that the unused fields in this structure should be initialized to 0 so that random kernel stack data isn't exposed to the user. This patch adds such an initialization to the two places where usbfs raises signals. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Dave Mielke <dave@mielke.cc> CC: <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-15Merge tag 'usb-3.20-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB patches from Greg KH: "Here's the big pull request for the USB driver tree for 3.20-rc1. Nothing major happening here, just lots of gadget driver updates, new device ids, and a bunch of cleanups. All of these have been in linux-next for a while with no reported issues" * tag 'usb-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (299 commits) usb: musb: fix device hotplug behind hub usb: dwc2: Fix a bug in reading the endpoint directions from reg. staging: emxx_udc: fix the build error usb: Retry port status check on resume to work around RH bugs Revert "usb: Reset USB-3 devices on USB-3 link bounce" uhci-hub: use HUB_CHAR_* usb: kconfig: replace PPC_OF with PPC ehci-pci: disable for Intel MID platforms (update) usb: gadget: Kconfig: use bool instead of boolean usb: musb: blackfin: remove incorrect __exit_p() USB: fix use-after-free bug in usb_hcd_unlink_urb() ehci-pci: disable for Intel MID platforms usb: host: pci_quirks: joing string literals USB: add flag for HCDs that can't receive wakeup requests (isp1760-hcd) USB: usbfs: allow URBs to be reaped after disconnection cdc-acm: kill unnecessary messages cdc-acm: add sanity checks usb: phy: phy-generic: Fix USB PHY gpio reset usb: dwc2: fix USB core dependencies usb: renesas_usbhs: fix NULL pointer dereference in dma_release_channel() ...
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