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2008-10-20powerpc/85xx: Move mpc8572ds.dts to address-cells/size-cells = <2>Kumar Gala
Change the top-level #address-cells and #size-cells to <2> so the mpc8572ds.dts is easier to deal with both a true 32-bit physical or 36-bit physical address space. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-20of/spi: Support specifying chip select as active high via device treeWolfgang Ocker
The patch allows to specify that an SPI device needs an active high chip select. Signed-off-by: Wolfgang Ocker <weo@reccoware.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-20powerpc: Remove device_type = "board_control" properties in .dts filesAnton Vorontsov
We don't want to encourage the bogus device_type usage. The device type isn't used in the code, so we can simply remove it from the documentation and dts files. Boards should specify proper compatible entries instead. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-20i2c-cpm: Suppress autoprobing for devicesWolfram Sang
Similar to commit 618b26d52843c0f85b8eb143cf2695d7f6fd072d, also remove automatic probing for this i2c controller. Might need updates to dts files using it. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Jochen Friedrich <jochen@scram.de> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-20powerpc/85xx: Fix mpc8536ds dma interrupt numbersEd Swarthout
Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-20powerpc/85xx: Enable enhanced functions for 8536 TSECJason Jin
Signed-off-by: Jason Jin <Jason.jin@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-15Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: MIPS: Kill unused <asm/debug.h> inclusions MIPS: IP32: Add platform device for CMOS RTC; remove dead code RTC: M48T35: new RTC driver MIPS: IP27: Switch over to RTC class driver MIPS: DS1286: New RTC driver MIPS: IP22/28: Switch over to RTC class driver MIPS: PCI: Scan busses when they are registered MIPS: WGT634U: Add reset button support MIPS: BCM47xx: Use the new SSB GPIO API MIPS: BCM47xx: Remove references to BCM947XX MIPS: WGT634U: Add machine detection message MIPS: Align .data.cacheline_aligned based on CONFIG_MIPS_L1_CACHE_SHIFT MIPS: show_cpuinfo prints the type of the calling CPU MIPS: Fix wrong branch target in new spin_lock code. MIPS: Have a heart for a lonely, lost header file ...
2008-10-15tty: make sure that proc_clear_tty stores the cpu flagsArjan van de Ven
proc_clear_tty() gets called with interrupts off (while holding the task list lock) from sys_setid. This means that it needs the _irqsave version of the locking primitives. Reported-by: Marcin Slusarz <marcin.slusarz@gmail.com> Tested-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-15metronomefb: Fix warning when building 64bitAlan Cox
The metronome driver produces warnings when built on x86-64 as it assumes that size_t is an int. Use %Zd instead. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-15xfs: fix remount rw with unrecognized optionsChristoph Hellwig
When we skip unrecognized options in xfs_fs_remount we should just break out of the switch and not return because otherwise we may skip clearing the xfs-internal read-only flag. This will only show up on some operations like touch because most read-only checks are done by the VFS which thinks this filesystem is r/w. Eventually we should replace the XFS read-only flag with a helper that always checks the VFS flag to make sure they can never get out of sync. Bug reported and fix verified by Marcel Beister on #xfs. Bug fix verified by updated xfstests/189. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Timothy Shimmin <tes@sgi.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-15Merge branch 'build_fix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'build_fix' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: ocfs2: fix build error
2008-10-15Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (158 commits) powerpc: Fix CHRP PCI config access for indirect_pci powerpc/chrp: Fix detection of Python PCI host bridge on IBM CHRPs powerpc: Fix 32-bit SMP boot on CHRP powerpc: Fix link errors on 32-bit machines using legacy DMA powerpc/pci: Improve detection of unassigned bridge resources hvc_console: Fix free_irq in spinlocked section powerpc: Get USE_STRICT_MM_TYPECHECKS working again powerpc: Reflect the used arguments in machine_init() prototype powerpc: Fix DMA offset for non-coherent DMA powerpc: fix fsl_upm nand driver modular build powerpc/83xx: add NAND support for the MPC8360E-RDK boards powerpc: FPGA support for GE Fanuc SBC610 i2c: MPC8349E-mITX Power Management and GPIO expander driver powerpc: reserve two DMA channels for audio in MPC8610 HPCD device tree powerpc: document the "fsl,ssi-dma-channel" compatible property powerpc: disable CHRP and PMAC support in various defconfigs OF: add fsl,mcu-mpc8349emitx to the exception list powerpc/83xx: add DS1374 RTC support for the MPC837xE-MDS boards powerpc: remove support for bootmem-allocated memory for the DIU driver powerpc: remove non-dependent load fsl_booke PTE_64BIT ...
2008-10-15MIPS: Kill unused <asm/debug.h> inclusionsShinya Kuribayashi
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: IP32: Add platform device for CMOS RTC; remove dead codeThomas Bogendoerfer
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15RTC: M48T35: new RTC driverThomas Bogendoerfer
This driver replaces the broken ip27-rtc driver in drivers/char and gives back RTC support for SGI IP27 machines. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Alessandro Zummo <alessandro.zummo@towertech.it> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: IP27: Switch over to RTC class driverThomas Bogendoerfer
This patchset removes some dead code and creates a platform device for the RTC class driver. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: DS1286: New RTC driverThomas Bogendoerfer
This driver replaces the broken DS1286 driver in drivers/char and gives back RTC support for SGI IP22 and IP28 machines. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Alessandro Zummo <alessandro.zummo@towertech.it> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: IP22/28: Switch over to RTC class driverThomas Bogendoerfer
This patchset removes some dead code and creates a platform device for the RTC class driver. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: PCI: Scan busses when they are registeredAurelien Jarno
The patch below changes register_pci_controller() such that controllers being added after pcibios_init() has run are be scanned immediately. This is needed for example by the BCM47xx PCI controller, which is located on the SSB bus, which is now initialized after the PCI subsystem. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: WGT634U: Add reset button supportAurelien Jarno
This patch adds support for the reset button of WGT634U machine, using GPIO interrupts. Based on a patch from Michel Lespinasse. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: BCM47xx: Use the new SSB GPIO APIAurelien Jarno
This patch simplifies the BCM47xx GPIO code by using the new SSB GPIO API, which does a lot things that were implemented directly in the BCM47xx code. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: BCM47xx: Remove references to BCM947XXAurelien Jarno
This patch removes the remaining reference to the BCM947xx development board codename. Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: WGT634U: Add machine detection messageAurelien Jarno
This adds a printk message when a WGT634U machine is detected. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: Align .data.cacheline_aligned based on CONFIG_MIPS_L1_CACHE_SHIFTDavid Daney
Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: show_cpuinfo prints the type of the calling CPUJohannes Dickgreber
It should print the type of the Nth processor. Signed-off-by: Johannes Dickgreber <tanzy@gmx.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: Fix wrong branch target in new spin_lock code.Johannes Dickgreber
Signed-off-by: Johannes Dickgreber <tanzy@gmx.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15MIPS: Have a heart for a lonely, lost header file ...Ralf Baechle
... and move it to where all its brothers and sisters reside. Requested by Shane McDonald <mcdonald.shane@gmail.com>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-14ocfs2: fix build errorMark Fasheh
I merged the latest ocfs2_read_blocks() changes in xattr.c wrong. This makes Ocfs2 compile again. Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-10-15Merge commit 'origin'Benjamin Herrenschmidt
Manual fixup of conflicts on: arch/powerpc/include/asm/dcr-regs.h drivers/net/ibm_newemac/core.h
2008-10-14Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c-viapro: Add support for SMBus Process Call transactions i2c: Restore i2c_smbus_process_call function i2c: Do earlier driver model init i2c: Only build Tyan SMBus mux drivers on x86 i2c: Guard against oopses from bad init sequences i2c: Document the implementation details of the /dev interface i2c: Improve dev-interface documentation i2c-parport-light: Don't register a platform device resource hwmon: (dme1737) Convert to a new-style i2c driver hwmon: (dme1737) Be less i2c-centric i2c/tps65010: Vibrator hookup to gpiolib i2c-viapro: Add VX800/VX820 support i2c: Renesas Highlander FPGA SMBus support i2c-pca-isa: Don't grab arbitrary resources i2c/isp1301_omap: Convert to a new-style i2c driver, part 2 i2c/isp1301_omap: Convert to a new-style i2c driver, part 1
2008-10-14Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (55 commits) HID: build drivers for all quirky devices by default HID: add missing blacklist entry for Apple ATV ircontrol HID: add support for Bright ABNT2 brazilian device HID: Don't let Avermedia Radio FM800 be handled by usb hid drivers HID: fix numlock led on Dell device 0x413c/0x2105 HID: remove warn() macro from usb hid drivers HID: remove info() macro from usb HID drivers HID: add appletv IR receiver quirk HID: fix a lockup regression when using force feedback on a PID device HID: hiddev.h: Fix example code. HID: hiddev.h: Fix mixed space and tabs in example code. HID: convert to dev_* prints HID: remove hid-ff HID: move zeroplus FF processing HID: move thrustmaster FF processing HID: move pantherlord FF processing HID: fix incorrent length condition in hidraw_write() HID: fix tty<->hid deadlock HID: ignore iBuddy devices HID: report descriptor fix for remaining MacBook JIS keyboards ...
2008-10-14Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: (56 commits) ocfs2: Make cached block reads the common case. ocfs2: Kill the last naked wait_on_buffer() for cached reads. ocfs2: Move ocfs2_bread() into dir.c ocfs2: Simplify ocfs2_read_block() ocfs2: Require an inode for ocfs2_read_block(s)(). ocfs2: Separate out sync reads from ocfs2_read_blocks() ocfs2: Refactor xattr list and remove ocfs2_xattr_handler(). ocfs2: Calculate EA hash only by its suffix. ocfs2: Move trusted and user attribute support into xattr.c ocfs2: Uninline ocfs2_xattr_name_hash() ocfs2: Don't check for NULL before brelse() ocfs2: use smaller counters in ocfs2_remove_xattr_clusters_from_cache ocfs2: Documentation update for user_xattr / nouser_xattr mount options ocfs2: make la_debug_mutex static ocfs2: Remove pointless !! ocfs2: Add empty bucket support in xattr. ocfs2/xattr.c: Fix a bug when inserting xattr. ocfs2: Add xattr mount option in ocfs2_show_options() ocfs2: Switch over to JBD2. ocfs2: Add the 'inode64' mount option. ...
2008-10-14rtc-cmos: look for PNP RTC first, then for platform RTCBjorn Helgaas
We shouldn't rely on "pnp_platform_devices" to tell us whether there is a PNP RTC device. I introduced "pnp_platform_devices", but I think it was a mistake. All it tells us is whether we found any PNPBIOS or PNPACPI devices. Many machines have some PNP devices, but do not describe the RTC via PNP. On those machines, we need to do the platform driver probe to find the RTC. We should just register the PNP driver and see whether it claims anything. If we don't find a PNP RTC, fall back to the platform driver probe. This (in conjunction with the arch/x86/kernel/rtc.c patch to add a platform RTC device when PNP doesn't have one) should resolve these issues: http://bugzilla.kernel.org/show_bug.cgi?id=11580 https://bugzilla.redhat.com/show_bug.cgi?id=451188 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Reported-by: Rik Theys <rik.theys@esat.kuleuven.be> Reported-by: shr_msn@yahoo.com.tw Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14x86: register a platform RTC device if PNP doesn't describe itBjorn Helgaas
Most if not all x86 platforms have an RTC device, but sometimes the RTC is not exposed as a PNP0b00/PNP0b01/PNP0b02 device in PNPBIOS or ACPI: http://bugzilla.kernel.org/show_bug.cgi?id=11580 https://bugzilla.redhat.com/show_bug.cgi?id=451188 It's best if we can discover the RTC via PNP because then we know which flavor of device it is, where it lives, and which IRQ it uses. But if we can't, we should register a platform device using the compiled-in RTC_PORT/RTC_IRQ resource assumptions. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Reported-by: Rik Theys <rik.theys@esat.kuleuven.be> Reported-by: shr_msn@yahoo.com.tw Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-15powerpc: Fix CHRP PCI config access for indirect_pciBenjamin Herrenschmidt
Recently, indirect_pci was changed to test if the bus number requested is the one hanging straight off the PHB, then it substitutes the bus number with another one contained in a new "self_busno" field of the pci_controller structure. However, this breaks CHRP which didn't initialize this new field, and which relies on having the right bus number passed to the hardware. This fixes it by initializing this variable properly for all CHRP bridges Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-15powerpc/chrp: Fix detection of Python PCI host bridge on IBM CHRPsBenjamin Herrenschmidt
The detection of the IBM "Python" PCI host bridge on IBM CHRP machines such as old RS6000 was broken when we changed of_device_is_compatible() from strncasecmp to strcasecmp (dropped the "n" variant) due to the way IBM encodes the chip version. We fix that by instead doing a match on the model property like we do for others bridges in that file. It should be good enough for those machines. If yours is still broken, let me know. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-15powerpc: Fix 32-bit SMP boot on CHRPBenjamin Herrenschmidt
prom_init was changed to take a new argument, the address where the kernel is loaded, which is now used to copy the SMP spin loop down before use. However, only head_64.S was adapted to pass this new value, not head_32.S, thus breaking SMP boot on 32-bit SMP CHRP machines. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-15powerpc: Fix link errors on 32-bit machines using legacy DMABenjamin Herrenschmidt
The new merged DMA code will try to access isa_bridge_pcidev when trying to DMA to/from legacy devices. This is however only defined on 64-bit. Fixes this for now by adding the variable, even if it stays NULL. In the long run, we'll make isa-bridge.c common to 32 and 64-bit. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-15powerpc/pci: Improve detection of unassigned bridge resourcesBenjamin Herrenschmidt
When the powerpc PCI layer is not configured to re-assign everything, it currently fails to detect that a PCI to PCI bridge has been left unassigned by the firmware and tries to allocate resource for the default window values in the bridge (0...X) (with the notable exception of a hack we have in there that detects some Apple firmware unassigned bridge resources). This results in resource allocation failures, which are generally fixed up later on but it causes scary warnings in the logs and we have seen the fixup code fall over in some circumstances (a different issue to fix as well). This code improves that by providing a more complete & useful function to intuit that a bridge was left unassigned by the firmware, and thus force a full re-allocation by the PCI code without trying to allocate the existing useless resources first. The algorithm we use basically considers unassigned a window that starts at 0 (PCI address) if the corresponding address space enable bit is not set. In addition, for memory space, it considers such a resource unassigned also if the host bridge isn't configured to forward cycles to address 0 (ie, the resource basically overlaps main memory). This fixes a range of problems with things like Bare-Metal support on pSeries machines, or attempt to use partial firmware PCI setup. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-15hvc_console: Fix free_irq in spinlocked sectionChristian Borntraeger
commit 611e097d7707741a336a0677d9d69bec40f29f3d Author: Christian Borntraeger <borntraeger@de.ibm.com> hvc_console: rework setup to replace irq functions with callbacks introduced a spinlock recursion problem. The notifier_del is called with a lock held, and in turns calls free_irq which then complains when manipulating procfs. This fixes it by moving the call to the notifier to outside of the locked section. Signed-off-by: Christian Borntraeger<borntraeger@de.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-14rtc-cmos: move wake setup from ACPI glue into RTC driverBjorn Helgaas
Move rtc_wake_setup() from drivers/acpi/glue.c into the RTC driver in drivers/rtc/rtc-cmos.c. This removes the ordering constraint between the module_init(acpi_rtc_init) and the cmos_do_probe() code that depends on it. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14HID: build drivers for all quirky devices by defaultJiri Kosina
Once kernel configuration has CONFIG_HID turned on, let also all the specialized drivers for quirky devices to be built (unless CONFIG_EMBEDDED is specified), as usually users don't care that much which driver gives them the functionality, but when they want generic support, they probably want to have support for all the quirky devices as well. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-10-14HID: add missing blacklist entry for Apple ATV ircontrolJiri Kosina
This device is already handled by hid-apple driver, but the blacklist entry was missing in generic driver. Reported-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-10-14HID: add support for Bright ABNT2 brazilian deviceMauro Carvalho Chehab
This keyboard needs to reset the LEDS during probe. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-10-14HID: Don't let Avermedia Radio FM800 be handled by usb hid driversMauro Carvalho Chehab
Based on an original patch from Alexey Klimov <klimov.linux@gmail.com>, against kernel version 2.6.27. This device is already handled by radio-mr800 driver, and we therefore want usbhid not to touch it. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-10-14HID: fix numlock led on Dell device 0x413c/0x2105Mauro Carvalho Chehab
This keyboard needs to re-sync numlock after probing. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-10-14HID: remove warn() macro from usb hid driversFrom: Greg Kroah-Hartman
USB should not be having it's own printk macros, so remove warn() and use the system-wide standard of dev_warn() wherever possible. In the few places that will not work out, use a basic printk(). Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-10-14HID: remove info() macro from usb HID driversGreg Kroah-Hartman
USB should not be having it's own printk macros, so remove info() and use the system-wide standard of dev_info() wherever possible. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-10-14HID: add appletv IR receiver quirkPeter Korsgaard
Similar to the existing IRCONTROL4 handling Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-10-14HID: fix a lockup regression when using force feedback on a PID deviceAnssi Hannula
Commit 8006479c9b75fb6594a7b746af3d7f1fbb68f18f introduced a spinlock in input_dev->event_lock, which is locked when handling input events. However, the hid-pidff driver sleeps when handling events as it waits for reports being sent to the device before changing the report contents again. This causes a system lockup when trying to use force feedback with a PID device, a regression introduced in 2.6.24 and 2.6.23.15. Fix it by extracting the raw report data from struct hid_report immediately when hid_submit_report() is called, therefore allowing drivers to change the contents of struct hid_report immediately without affecting the already-queued transfer. In hid-pidff, re-add the removed usbhid_wait_io() to pidff_erase_effect() instead, to prevent a full report queue from causing the submission to fail, thus not freeing up device memory. pidff_erase_effect() is not called while dev->event_lock is held. Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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