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2014-11-24usb-quirks: Add reset-resume quirk for MS Wireless Laser Mouse 6000Hans de Goede
This wireless mouse receiver needs a reset-resume quirk to properly come out of reset. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1165206 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-22usb: xhci: rework root port wake bits if controller isn't allowed to wakeupLu Baolu
When system is being suspended, if host device is not allowed to do wakeup, xhci_suspend() needs to clear all root port wake on bits. Otherwise, some platforms may generate spurious wakeup, even if PCI PME# is disabled. The initial commit ff8cbf250b44 ("xhci: clear root port wake on bits"), which also got into stable, turned out to not work correctly and had to be reverted, and is now rewritten. Cc: stable <stable@vger.kernel.org> # v3.2+ Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Suggested-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Alan Stern <stern@rowland.harvard.edu> [Mathias Nyman: reword commit message] Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-22USB: xhci: Reset a halted endpoint immediately when we encounter a stall.Mathias Nyman
If a device is halted and reuturns a STALL, then the halted endpoint needs to be cleared both on the host and device side. The host side halt is cleared by issueing a xhci reset endpoint command. The device side is cleared with a ClearFeature(ENDPOINT_HALT) request, which should be issued by the device driver if a URB reruen -EPIPE. Previously we cleared the host side halt after the device side was cleared. To make sure the host side halt is cleared in time we want to issue the reset endpoint command immedialtely when a STALL status is encountered. Otherwise we end up not following the specs and not returning -EPIPE several times in a row when trying to transfer data to a halted endpoint. Fixes: bcef3fd (USB: xhci: Handle errors that cause endpoint halts.) Cc: <stable@vger.kernel.org> # v2.6.33+ Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-22Revert "xhci: clear root port wake on bits if controller isn't wake-up capable"Lu Baolu
commit ff8cbf250b44 ("xhci: clear root port wake on bits if controller isn't") can cause device detection error if runtime PM is enabled, and S3 wake is disabled. Revert it. https://bugzilla.kernel.org/show_bug.cgi?id=85701 This commit got into stable and should be reverted from there as well. Cc: stable <stable@vger.kernel.org> # v3.2+ Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Reported-by: Dmitry Nezhevenko <dion@inhex.net> [Mathias Nyman: reword commit message] Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-22USB: xhci: don't start a halted endpoint before its new dequeue is setMathias Nyman
A halted endpoint ring must first be reset, then move the ring dequeue pointer past the problematic TRB. If we start the ring too early after reset, but before moving the dequeue pointer we will end up executing the same problematic TRB again. As we always issue a set transfer dequeue command after a reset endpoint command we can skip starting endpoint rings at reset endpoint command completion. Without this fix we end up trying to handle the same faulty TD for contol endpoints. causing timeout, and failing testusb ctrl_out write tests. Fixes: e9df17e (USB: xhci: Correct assumptions about number of rings per endpoint.) Cc: <stable@vger.kernel.org> #v2.6.35 Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-22USB: uas: Add no-uas quirk for Hitachi usb-3 enclosures 4971:1012Hans de Goede
These disks have a broken uas implementation, the tag field of the status iu-s is not set properly, so we need to fall-back to usb-storage for these. 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>
2014-11-22Merge tag 'usb-serial-3.18-rc6' 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-rc6 Three fixes for bugs related to TTY error reporting, which can to lead to data being dropped by the line discipline. Included is also some new device ids for ftdi_sio and cp210x. Signed-off-by: Johan Hovold <johan@kernel.org>
2014-11-19USB: ssu100: fix overrun-error reportingJohan Hovold
Fix reporting of overrun errors, which should only be reported once using the inserted null character. Fixes: 6b8f1ca5581b ("USB: ssu100: set tty_flags in ssu100_process_packet") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2014-11-19USB: keyspan: fix overrun-error reportingJohan Hovold
Fix reporting of overrun errors, which are not associated with a character. Instead insert a null character and report only once. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2014-11-19USB: keyspan: fix tty line-status reportingJohan Hovold
Fix handling of TTY error flags, which are not bitmasks and must specifically not be ORed together as this prevents the line discipline from recognising them. Also insert null characters when reporting overrun errors as these are not associated with the received character. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2014-11-19usb: serial: ftdi_sio: add PIDs for Matrix Orbital productsTroy Clark
Add PIDs for new Matrix Orbital GTT series products. Signed-off-by: Troy Clark <tclark@matrixorbital.ca> Cc: stable <stable@vger.kernel.org> [johan: shorten commit message ] Signed-off-by: Johan Hovold <johan@kernel.org>
2014-11-10usb: dwc3: ep0: fix for dead codeFelipe Balbi
commit 6856d30 (usb: dwc3: ep0: return early on NULL requests) tried to fix a minor corner case where we could dereference a NULL pointer but it also ended up introducing some dead code. Unfortunately, that dead code, if reached, could end up starving the endpoint request list because a request would never be given back when it should. Fix this by moving the check for empty request list before its first use. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-10USB: serial: cp210x: add IDs for CEL MeshConnect USB StickPreston Fick
Signed-off-by: Preston Fick <pffick@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
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: 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: 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>
2014-11-05Revert "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>
2014-11-03usb: 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: quirks: enable device-qualifier quirk for yet another Elan touchscreenAdel Gadllah
Yet another device affected by this. Tested-by: Kevin Fenzi <kevin@scrye.com> Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03USB: quirks: enable device-qualifier quirk for another Elan touchscreenAdel Gadllah
Currently this quirk is enabled for the model with the device id 0x0089, it is needed for the 0x009b model, which is found on the Fujitsu Lifebook u904 as well. Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: storage: fix build warnings !CONFIG_PMLuis Henriques
Functions fw5895_init() and config_autodelink_before_power_down() are used only when CONFIG_PM is defined. drivers/usb/storage/realtek_cr.c:699:13: warning: 'fw5895_init' defined but not used [-Wunused-function] drivers/usb/storage/realtek_cr.c:629:12: warning: 'config_autodelink_before_power_down' defined but not used [-Wunused-function] Signed-off-by: Luis Henriques <luis.henriques@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: Remove references to non-existent PLAT_S5P symbolSylwester Nawrocki
The PLAT_S5P Kconfig symbol was removed in commit d78c16ccde96 ("ARM: SAMSUNG: Remove remaining legacy code"). There are still some references left, fix that by replacing them with ARCH_S5PV210. Fixes: d78c16ccde96 ("ARM: SAMSUNG: Remove remaining legacy code") Reported-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03uas: Add NO_ATA_1X for VIA VL711 devicesHans de Goede
Just like some Seagate enclosures, these devices do not seem to grok ata pass through commands. 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: Disable streams on Asmedia 1042 xhci controllersHans de Goede
Streams seem to be broken on the Asmedia 1042. An uas capable Seagate disk which is known to work fine with other controllers causes the system to freeze when connected over usb-3 with this controller, where as it works fine with uas in usb-2 ports, indicating a problem with streams. This is a bit bigger hammer then I would like to use for this, but for now it will have to make do. I've ordered a pci-e usb controller card with an Asmedia 1042, once that arrives I'll try to get streams to work (with a quirk flag if necessary) and then we can re-enable them. For now this at least makes uas capable disk enclosures work again by forcing fallback to the usb-storage driver. Reported-by: Bogdan Mihalcea <bogdan.mihalcea@infim.ro> Cc: Bogdan Mihalcea <bogdan.mihalcea@infim.ro> 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>
2014-11-03USB: HWA: fix a warning messageDan Carpenter
We wanted to print the version as (major).(minor) but because the shift operation is higher precedence than the mask then we print (minor).(minor). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03uas: Add US_FL_NO_ATA_1X quirk for 1 more Seagate modelHans 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>
2014-11-03usb-storage: handle a skipped data phaseAlan Stern
Sometimes mass-storage devices using the Bulk-only transport will mistakenly skip the data phase of a command. Rather than sending the data expected by the host or sending a zero-length packet, they go directly to the status phase and send the CSW. This causes problems for usb-storage, for obvious reasons. The driver will interpret the CSW as a short data transfer and will wait to receive a CSW. The device won't have anything left to send, so the command eventually times out. The SCSI layer doesn't retry commands after they time out (this is a relatively recent change). Therefore we should do our best to detect a skipped data phase and handle it promptly. This patch adds code to do that. If usb-storage receives a short 13-byte data transfer from the device, and if the first four bytes of the data match the CSW signature, the driver will set the residue to the full transfer length and interpret the data as a CSW. This fixes Bugzilla #86611. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Tested-by: Paul Osmialowski <newchief@king.net.pl> CC: <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03usb: Do not allow usb_alloc_streams on unconfigured devicesHans de Goede
This commit fixes the following oops: [10238.622067] scsi host3: uas_eh_bus_reset_handler start [10240.766164] usb 3-4: reset SuperSpeed USB device number 3 using xhci_hcd [10245.779365] usb 3-4: device descriptor read/8, error -110 [10245.883331] usb 3-4: reset SuperSpeed USB device number 3 using xhci_hcd [10250.897603] usb 3-4: device descriptor read/8, error -110 [10251.058200] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040 [10251.058244] IP: [<ffffffff815ac6e1>] xhci_check_streams_endpoint+0x91/0x140 <snip> [10251.059473] Call Trace: [10251.059487] [<ffffffff815aca6c>] xhci_calculate_streams_and_bitmask+0xbc/0x130 [10251.059520] [<ffffffff815aeb5f>] xhci_alloc_streams+0x10f/0x5a0 [10251.059548] [<ffffffff810a4685>] ? check_preempt_curr+0x75/0xa0 [10251.059575] [<ffffffff810a46dc>] ? ttwu_do_wakeup+0x2c/0x100 [10251.059601] [<ffffffff810a49e6>] ? ttwu_do_activate.constprop.111+0x66/0x70 [10251.059635] [<ffffffff815779ab>] usb_alloc_streams+0xab/0xf0 [10251.059662] [<ffffffffc0616b48>] uas_configure_endpoints+0x128/0x150 [uas] [10251.059694] [<ffffffffc0616bac>] uas_post_reset+0x3c/0xb0 [uas] [10251.059722] [<ffffffff815727d9>] usb_reset_device+0x1b9/0x2a0 [10251.059749] [<ffffffffc0616f42>] uas_eh_bus_reset_handler+0xb2/0x190 [uas] [10251.059781] [<ffffffff81514293>] scsi_try_bus_reset+0x53/0x110 [10251.059808] [<ffffffff815163b7>] scsi_eh_bus_reset+0xf7/0x270 <snip> The problem is the following call sequence (simplified): 1) usb_reset_device 2) usb_reset_and_verify_device 2) hub_port_init 3) hub_port_finish_reset 3) xhci_discover_or_reset_device This frees xhci->devs[slot_id]->eps[ep_index].ring for all eps but 0 4) usb_get_device_descriptor This fails 5) hub_port_init fails 6) usb_reset_and_verify_device fails, does not restore device config 7) uas_post_reset 8) xhci_alloc_streams NULL deref on the free-ed ring This commit fixes this by not allowing usb_alloc_streams to continue if the device is not configured. Note that we do allow usb_free_streams to continue after a (logical) disconnect, as it is necessary to explicitly free the streams at the xhci controller level. Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03cdc-acm: ensure that termios get set when the port is activatedJim Paris
The driver wasn't properly configuring the hardware for the current termios settings under all conditions. Ensure that termios are written to the device when the port is activated. Signed-off-by: Jim Paris <jim@jtan.com> Reviewed-by: Johan Hovold <johan@kernel.org> Acked-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03USB: cdc-acm: add device id for GW Instek AFG-2225Johan Hovold
Add device-id entry for GW Instek AFG-2225, which has a byte swapped bInterfaceSubClass (0x20). Reported-by: Karl Palsson <karlp@tweak.net.au> Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03USB: opticon: fix non-atomic allocation in write pathJohan Hovold
Write may be called from interrupt context so make sure to use GFP_ATOMIC for all allocations in write. Fixes: 0d930e51cfe6 ("USB: opticon: Add Opticon OPN2001 write support") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2014-11-03USB: kobil_sct: fix non-atomic allocation in write pathJohan Hovold
Write may be called from interrupt context so make sure to use GFP_ATOMIC for all allocations in write. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2014-10-29Merge tag 'usb-serial-3.18-rc3' 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-rc3 These updates remove two allocations of unused buffers from kobil_sct and add some new device ids. Signed-off-by: Johan Hovold <johan@kernel.org>
2014-10-28usb: dwc2: gadget: fix enumeration issuesMarek Szyprowski
Excessive debug messages might cause timing issues that prevent correct usb enumeration. This patch hides information about USB bus reset to let driver enumerate fast enough to avoid making host angry. This fixes endless enumeration and usb reset loop observed with some Linux hosts. Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-10-27usb: chipidea: Fix oops when removing the ci_hdrc moduleTorsten Fleischer
The call of 'kfree(ci->hw_bank.regmap)' in ci_hdrc_remove() sometimes causes a kernel oops when removing the ci_hdrc module. Since there is no separate memory allocated for the ci->hw_bank.regmap array, there is no need to free it. Cc: v3.14+ <stable@@vger.kernel.org> Signed-off-by: Torsten Fleischer <to-fleischer@t-online.de> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-23usb: gadget: function: Fixed the return value on error pathPavitrakumar Managutte
Fixed the return value on failure. status variable is set to 0 at usb_assign_descriptors call and the same is returned on error which is incorrect. Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Pavitrakumar Managutte <pavitra1729@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-10-23usb: dwc2: gadget: disable phy before turning off power regulatorsMarek Szyprowski
This patch fixes probe function to match the pattern used elsewhere in the driver, where power regulators are turned off as the last element in the device shutdown procedure. Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-10-23usb: gadget: function: Remove redundant usb_free_all_descriptorsPavitrakumar Managutte
Removed usb_free_all_descriptors in the bind functions, which results in double-free corruption of the descriptors on error path. The usb descriptors are allocated by usb_assign_descriptors. Signed-off-by: Pavitrakumar Managutte <pavitra1729@gmail.com> Reviewed-by: Robert Baldyga <r.baldyga@samsung.com> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-10-23usb: dwc3: gadget: Properly initialize LINK TRBJack Pham
On ISOC endpoints the last trb_pool entry used as a LINK TRB is not getting zeroed out correctly due to memset being called incorrectly and in the wrong place. If pool allocated from DMA was not zero-initialized to begin with this will result in the size and ctrl values being random garbage. Call memset correctly after assignment of the trb_link pointer. Fixes: f6bafc6a1c ("usb: dwc3: convert TRBs into bitshifts") Cc: <stable@vger.kernel.org> # v3.4+ Signed-off-by: Jack Pham <jackp@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-10-23usb: dwc2: gadget: fix gadget unregistration in udc_stop() functionMarek Szyprowski
udc_stop() should clear ->driver pointer unconditionally to let the UDC framework to work correctly with both registering/unregistering gadgets and enabling/disabling gadgets by writing to /sys/class/udc/*hsotg/soft_connect interface. Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-10-23usb: dwc2: Bits in bitfield should add up to 32Charles Manning
The unioned u32 is used for clearing etc. Having the number of bitfield bits add up to more than 32 is broken, even if benign. Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Charles Manning <cdhmanning@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-10-23usb: dwc2: gadget: sparse warning of context imbalanceSudip Mukherjee
sparse was giving the following warning: warning: context imbalance in 's3c_hsotg_ep_enable' - different lock contexts for basic block we were returning ENOMEM while still holding the spinlock. The sparse warning was fixed by releasing the spinlock before return. Cc: <stable@vger.kernel.org> # v3.17 Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-10-23usb: gadget: udc: core: fix kernel oops with soft-connectFelipe Balbi
Currently, there's no guarantee that udc->driver will be valid when using soft_connect sysfs interface. In fact, we can very easily trigger a NULL pointer dereference by trying to disconnect when a gadget driver isn't loaded. Fix this bug: ~# echo disconnect > soft_connect [ 33.685743] Unable to handle kernel NULL pointer dereference at virtual address 00000014 [ 33.694221] pgd = ed0cc000 [ 33.697174] [00000014] *pgd=ae351831, *pte=00000000, *ppte=00000000 [ 33.703766] Internal error: Oops: 17 [#1] SMP ARM [ 33.708697] Modules linked in: xhci_plat_hcd xhci_hcd snd_soc_davinci_mcasp snd_soc_tlv320aic3x snd_soc_edma snd_soc_omap snd_soc_evm snd_soc_core dwc3 snd_compress snd_pcm_dmaengine snd_pcm snd_timer snd lis3lv02d_i2c matrix_keypad lis3lv02d dwc3_omap input_polldev soundcore [ 33.734372] CPU: 0 PID: 1457 Comm: bash Not tainted 3.17.0-09740-ga93416e-dirty #345 [ 33.742457] task: ee71ce00 ti: ee68a000 task.ti: ee68a000 [ 33.748116] PC is at usb_udc_softconn_store+0xa4/0xec [ 33.753416] LR is at mark_held_locks+0x78/0x90 [ 33.758057] pc : [<c04df128>] lr : [<c00896a4>] psr: 20000013 [ 33.758057] sp : ee68bec8 ip : c0c00008 fp : ee68bee4 [ 33.770050] r10: ee6b394c r9 : ee68bf80 r8 : ee6062c0 [ 33.775508] r7 : 00000000 r6 : ee6062c0 r5 : 0000000b r4 : ee739408 [ 33.782346] r3 : 00000000 r2 : 00000000 r1 : ee71d390 r0 : ee664170 [ 33.789168] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 33.796636] Control: 10c5387d Table: ad0cc059 DAC: 00000015 [ 33.802638] Process bash (pid: 1457, stack limit = 0xee68a248) [ 33.808740] Stack: (0xee68bec8 to 0xee68c000) [ 33.813299] bec0: 0000000b c0411284 ee6062c0 00000000 ee68bef4 ee68bee8 [ 33.821862] bee0: c04112ac c04df090 ee68bf14 ee68bef8 c01c2868 c0411290 0000000b ee6b3940 [ 33.830419] bf00: 00000000 00000000 ee68bf4c ee68bf18 c01c1a24 c01c2818 00000000 00000000 [ 33.838990] bf20: ee61b940 ee2f47c0 0000000b 000ce408 ee68bf80 c000f304 ee68a000 00000000 [ 33.847544] bf40: ee68bf7c ee68bf50 c0152dd8 c01c1960 ee68bf7c c0170af8 ee68bf7c ee2f47c0 [ 33.856099] bf60: ee2f47c0 000ce408 0000000b c000f304 ee68bfa4 ee68bf80 c0153330 c0152d34 [ 33.864653] bf80: 00000000 00000000 0000000b 000ce408 b6e7fb50 00000004 00000000 ee68bfa8 [ 33.873204] bfa0: c000f080 c01532e8 0000000b 000ce408 00000001 000ce408 0000000b 00000000 [ 33.881763] bfc0: 0000000b 000ce408 b6e7fb50 00000004 0000000b 00000000 000c5758 00000000 [ 33.890319] bfe0: 00000000 bec2c924 b6de422d b6e1d226 40000030 00000001 75716d2f 00657565 [ 33.898890] [<c04df128>] (usb_udc_softconn_store) from [<c04112ac>] (dev_attr_store+0x28/0x34) [ 33.907920] [<c04112ac>] (dev_attr_store) from [<c01c2868>] (sysfs_kf_write+0x5c/0x60) [ 33.916200] [<c01c2868>] (sysfs_kf_write) from [<c01c1a24>] (kernfs_fop_write+0xd0/0x194) [ 33.924773] [<c01c1a24>] (kernfs_fop_write) from [<c0152dd8>] (vfs_write+0xb0/0x1bc) [ 33.932874] [<c0152dd8>] (vfs_write) from [<c0153330>] (SyS_write+0x54/0xb0) [ 33.940247] [<c0153330>] (SyS_write) from [<c000f080>] (ret_fast_syscall+0x0/0x48) [ 33.948160] Code: e1a01007 e12fff33 e5140004 e5143008 (e5933014) [ 33.954625] ---[ end trace f849bead94eab7ea ]--- Fixes: 2ccea03 (usb: gadget: introduce UDC Class) Cc: <stable@vger.kernel.org> # v3.1+ Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-10-23usb: musb: musb_dsps: fix NULL pointer in suspendSebastian Andrzej Siewior
So testing managed to configure musb in DMA mode but not load the matching cppi41 driver for DMA. This results in |musb-hdrc musb-hdrc.0.auto: Failed to request rx1. |musb-hdrc musb-hdrc.0.auto: musb_init_controller failed with status -517 |platform musb-hdrc.0.auto: Driver musb-hdrc requests probe deferral which is "okay". Once the driver is loaded we re-try probing and everyone is happy. Until then if you try suspend say echo mem > /sys/power/state then you go boom |Unable to handle kernel NULL pointer dereference at virtual address 000003a4 |pgd = cf50c000 |[000003a4] *pgd=8f6a3831, *pte=00000000, *ppte=00000000 |Internal error: Oops: 17 [#1] ARM |PC is at dsps_suspend+0x18/0x9c [musb_dsps] |LR is at dsps_suspend+0x18/0x9c [musb_dsps] |pc : [<bf08e268>] lr : [<bf08e268>] psr: a0000013 |sp : cbd97e00 ip : c0af4394 fp : 00000000 |r10: c0831d90 r9 : 00000002 r8 : cf6da410 |r7 : c03ba4dc r6 : bf08f224 r5 : 00000000 r4 : cbc5fcd0 |r3 : bf08e250 r2 : bf08f264 r1 : cf6da410 r0 : 00000000 |[<bf08e268>] (dsps_suspend [musb_dsps]) from [<c03ba508>] (platform_pm_suspend+0x2c/0x54) |Code: e1a04000 e9900041 e2800010 eb4caa8e (e59053a4) because platform_get_drvdata(glue->musb) returns a NULL pointer as long as the device is not fully probed. Tested-by: George Cherian <george.cherian@ti.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-10-23usb: musb: dsps: start OTG timer on resume againSebastian Andrzej Siewior
Commit 468bcc2a2ca ("usb: musb: dsps: kill OTG timer on suspend") stopped the timer in suspend path but forgot the re-enable it in the resume path. This patch fixes the behaviour. Cc: <stable@vger.kernel.org> # v3.14+ Fixes 468bcc2a2ca "usb: musb: dsps: kill OTG timer on suspend" Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>