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2016-03-05drivers/hwtracing: make coresight-etm-perf.c explicitly non-modularPaul Gortmaker1-2/+2
In commit 941943cf519f7cacbbcecee5c4ef4b77b466bd5c ("drivers/hwtracing: make coresight-* explicitly non-modular") we removed all uses of modular functions/macros in favour of their built-in equivlents in this subsystem. However that commit and commit 0bcbf2e30ff2271b54f54c8697a185f7d86ec6e4 ("coresight: etm-perf: new PMU driver for ETM tracers") were in flight at the same time, and hence one new non-modular user of module_init crept back in. Fix it up like we did all the others. Since module_init translates to device_initcall in the non-modular case, the init ordering remains unchanged with this commit. Cc: Alexander Shishkin <[email protected]> Signed-off-by: Paul Gortmaker <[email protected]> Acked-by: Mathieu Poirier <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-05drivers: char: mem: fix IS_ERROR_VALUE usageAndrzej Hajda1-1/+1
IS_ERR_VALUE macro should be used only with unsigned long type. Specifically it works incorrectly with longer types. The patch follows conclusion from discussion on LKML [1][2]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2120927 [2]: http://permalink.gmane.org/gmane.linux.kernel/2150581 Signed-off-by: Andrzej Hajda <[email protected]> Acked-by: Al Viro <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-05char: xillybus: Fix internal data structure initializationEli Billauer1-1/+3
A couple of fields in a data structure, which is used by the driver only, were not initialized properly during the driver's setup. The primary issue with this bug was that channel->wr_buf_size remained zero, so calls to dma_sync_single_for_cpu() took place with zero size, and consequently did nothing. This had a rather minimal practical impact, because (a) these calls are NOPs on Intel/AMD platforms, as well as other platforms with coherent cache, and (b) it's extremely rare that any cache line would survive between two reads from a given DMA buffer Hence no significant practical difference is expected with this patch. Signed-off-by: Eli Billauer <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-05pch_phub: return -ENODATA if ROM can't be mappedColin Ian King1-1/+3
The error return err is not initialized for the case when pci_map_rom fails and no ROM can me mapped. Fix this by setting ret to -ENODATA; (this is the same error value that is returned if the ROM data is successfully mapped but does not match the expected ROM signature.). Issue found from static code analysis using CoverityScan. Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01Drivers: hv: vmbus: Support kexec on ws2012 r2 and aboveAlex Ng1-1/+9
WS2012 R2 and above hosts can support kexec in that thay can support reconnecting to the host (as would be needed in the kexec path) on any CPU. Enable this. Pre ws2012 r2 hosts don't have this ability and consequently cannot support kexec. Signed-off-by: Alex Ng <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01Drivers: hv: vmbus: Support handling messages on multiple CPUsK. Y. Srinivasan3-7/+17
Starting with Windows 2012 R2, message inteerupts can be delivered on any VCPU in the guest. Support this functionality. Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01Drivers: hv: utils: Remove util transport handler from list if registration ↵Alex Ng1-0/+3
fails If util transport fails to initialize for any reason, the list of transport handlers may become corrupted due to freeing the transport handler without removing it from the list. Fix this by cleaning it up from the list. Signed-off-by: Alex Ng <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01Drivers: hv: util: Pass the channel information during the init callK. Y. Srinivasan5-3/+5
Pass the channel information to the util drivers that need to defer reading the channel while they are processing a request. This would address the following issue reported by Vitaly: Commit 3cace4a61610 ("Drivers: hv: utils: run polling callback always in interrupt context") removed direct *_transaction.state = HVUTIL_READY assignments from *_handle_handshake() functions introducing the following race: if a userspace daemon connects before we get first non-negotiation request from the server hv_poll_channel() won't set transaction state to HVUTIL_READY as (!channel) condition will fail, we set it to non-NULL on the first real request from the server. Signed-off-by: K. Y. Srinivasan <[email protected]> Reported-by: Vitaly Kuznetsov <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01Drivers: hv: vmbus: avoid unneeded compiler optimizations in ↵Vitaly Kuznetsov1-1/+1
vmbus_wait_for_unload() Message header is modified by the hypervisor and we read it in a loop, we need to prevent compilers from optimizing accesses. There are no such optimizations at this moment, this is just a future proof. Suggested-by: Radim Krcmar <[email protected]> Signed-off-by: Vitaly Kuznetsov <[email protected]> Reviewed-by: Radim Kr.má<[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01Drivers: hv: vmbus: remove code duplication in message handlingVitaly Kuznetsov3-47/+27
We have 3 functions dealing with messages and they all implement the same logic to finalize reads, move it to vmbus_signal_eom(). Suggested-by: Radim Krcmar <[email protected]> Signed-off-by: Vitaly Kuznetsov <[email protected]> Reviewed-by: Radim Kr.má<[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01Drivers: hv: vmbus: avoid wait_for_completion() on crashVitaly Kuznetsov4-6/+6
wait_for_completion() may sleep, it enables interrupts and this is something we really want to avoid on crashes because interrupt handlers can cause other crashes. Switch to the recently introduced vmbus_wait_for_unload() doing busy wait instead. Reported-by: Radim Krcmar <[email protected]> Signed-off-by: Vitaly Kuznetsov <[email protected]> Reviewed-by: Radim Kr.má<[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01Drivers: hv: vmbus: don't loose HVMSG_TIMER_EXPIRED messagesVitaly Kuznetsov1-35/+33
We must handle HVMSG_TIMER_EXPIRED messages in the interrupt context and we offload all the rest to vmbus_on_msg_dpc() tasklet. This functions loops to see if there are new messages pending. In case we'll ever see HVMSG_TIMER_EXPIRED message there we're going to lose it as we can't handle it from there. Avoid looping in vmbus_on_msg_dpc(), we're OK with handling one message per interrupt. Signed-off-by: Vitaly Kuznetsov <[email protected]> Reviewed-by: Radim Kr.má<[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01misc: at24: replace memory_accessor with nvmem_device_readAndrew Lunn6-52/+13
Now that the AT24 uses the NVMEM framework, replace the memory_accessor in the setup() callback with nvmem API calls. Signed-off-by: Andrew Lunn <[email protected]> Acked-by: Srinivas Kandagatla <[email protected]> Tested-by: Sekhar Nori <[email protected]> Acked-by: Wolfram Sang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01eeprom: 93xx46: extend driver to plug into the NVMEM frameworkAndrew Lunn2-27/+95
Add a regmap for accessing the EEPROM, and then use that with the NVMEM framework. Enable backward compatibility in the NVMEM config structure, so that the 'eeprom' file in sys is provided by the framework. Signed-off-by: Andrew Lunn <[email protected]> Acked-by: Srinivas Kandagatla <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01eeprom: at25: extend driver to plug into the NVMEM frameworkAndrew Lunn2-55/+71
Add a regmap for accessing the EEPROM, and then use that with the NVMEM framework. Enable backwards compatibility in the NVMEM config, so that the 'eeprom' file in sys is provided by the framework. Signed-off-by: Andrew Lunn <[email protected]> Acked-by: Srinivas Kandagatla <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01eeprom: at25: Remove in kernel API for accessing the EEPROMAndrew Lunn2-28/+0
The setup() callback is not used by any in kernel code. Remove it. Any new code which requires access to the eeprom can use the NVMEM API. Signed-off-by: Andrew Lunn <[email protected]> Acked-by: Srinivas Kandagatla <[email protected]> Acked-by: Wolfram Sang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01eeprom: at24: extend driver to plug into the NVMEM frameworkAndrew Lunn2-41/+82
Add a regmap for accessing the EEPROM, and then use that with the NVMEM framework. Set the NVMEM config structure to enable backward, so that the 'eeprom' file in sys is provided by the framework. Signed-off-by: Andrew Lunn <[email protected]> Acked-by: Srinivas Kandagatla <[email protected]> Tested-by: Bartosz Golaszewski <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01nvmem: Add backwards compatibility support for older EEPROM drivers.Andrew Lunn2-9/+79
Older drivers made an 'eeprom' file available in the /sys device directory. Have the NVMEM core provide this to retain backwards compatibility. Signed-off-by: Andrew Lunn <[email protected]> Acked-by: Srinivas Kandagatla <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01nvmem: Add flag to export NVMEM to root onlyAndrew Lunn2-2/+56
Legacy AT24, AT25 EEPROMs are exported in sys so that only root can read the contents. The EEPROMs may contain sensitive information. Add a flag so the provide can indicate that NVMEM should also restrict access to root only. Signed-off-by: Andrew Lunn <[email protected]> Acked-by: Srinivas Kandagatla <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01misc: ad525x_dpot: Fix the enabling of the "otpXen" attributesDan Bogdan Nechita1-1/+1
Currently writing the attributes with "echo" will result in comparing: "enabled\n" with "enabled\0" and attribute is always set to false. Use the sysfs_streq() instead because it treats both NUL and new-line-then-NUL as equivalent string terminations. Signed-off-by: Dan Bogdan Nechita <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01drivers/misc/ad525x_dpot: AD5274 fix RDAC read back errorsMichael Hennerich1-1/+1
Fix RDAC read back errors caused by a typo. Value must shift by 2. Fixes: a4bd394956f2 ("drivers/misc/ad525x_dpot.c: new features") Signed-off-by: Michael Hennerich <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01mei: me: add broxton pci device idsTomas Winkler2-0/+7
Add device ids for Broxton SoC based devices. Signed-off-by: Tomas Winkler <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01Merge tag 'lkdtm-next' of ↵Greg Kroah-Hartman15-9/+399
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into char-misc-testing Kees writes: Become maintainer, add hardening tests for use-after-free and atomic wrapping.
2016-03-01Merge tag 'extcon-next-for-4.6' of ↵Greg Kroah-Hartman11-13/+92
git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-testing Chanwoo writes: Update extcon for 4.6 Detailed description for patchset: 1. Add new EXTCON_CHG_USB_SDP type - SDP (Standard Downstream Port) USB Charging Port means the charging connector.a 2. Add the VBUS detection by using GPIO on extcon-palmas - Beaglex15 board uses the extcon-palmas driver But, beaglex15 board need the GPIO support for VBUS detection. 3. Fix the minor issue of extcon drivers
2016-03-01Merge 4.5-rc6 into char-misc-nextGreg Kroah-Hartman539-4374/+7318
We want the fixes in here, and others are sending us pull requests based on this kernel tree. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-03-01lkdtm: improve use-after-free testsKees Cook1-4/+15
This improves the order of operations on the use-after-free tests to try to make sure we've executed any available sanity-checking code, and to report the poisoning that was found. Signed-off-by: Kees Cook <[email protected]>
2016-03-01lkdtm: add test for atomic_t underflow/overflowDavid Windsor1-0/+13
dmesg output of running this LKDTM test with PaX: [187095.475573] lkdtm: No crash points registered, enable through debugfs [187118.020257] lkdtm: Performing direct entry WRAP_ATOMIC [187118.030045] lkdtm: attempting atomic underflow [187118.030929] PAX: refcount overflow detected in: bash:1790, uid/euid: 0/0 [187118.071667] PAX: refcount overflow occured at: lkdtm_do_action+0x19e/0x400 [lkdtm] [187118.081423] CPU: 3 PID: 1790 Comm: bash Not tainted 4.2.6-pax-refcount-split+ #2 [187118.083403] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [187118.102596] task: ffff8800da8de040 ti: ffff8800da8e4000 task.ti: ffff8800da8e4000 [187118.111321] RIP: 0010:[<ffffffffc00fc2fe>] [<ffffffffc00fc2fe>] lkdtm_do_action+0x19e/0x400 [lkdtm] ... [187118.128074] lkdtm: attempting atomic overflow [187118.128080] PAX: refcount overflow detected in: bash:1790, uid/euid: 0/0 [187118.128082] PAX: refcount overflow occured at: lkdtm_do_action+0x1b6/0x400 [lkdtm] [187118.128085] CPU: 3 PID: 1790 Comm: bash Not tainted 4.2.6-pax-refcount-split+ #2 [187118.128086] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [187118.128088] task: ffff8800da8de040 ti: ffff8800da8e4000 task.ti: ffff8800da8e4000 [187118.128092] RIP: 0010:[<ffffffffc00fc316>] [<ffffffffc00fc316>] lkdtm_do_action+0x1b6/0x400 [lkdtm] Signed-off-by: David Windsor <[email protected]> [cleaned up whitespacing, keescook] Signed-off-by: Kees Cook <[email protected]>
2016-03-01lkdtm: Add read/write after free tests for buddy memoryLaura Abbott1-0/+45
The current tests for read/write after free work on slab allocated memory. Memory straight from the buddy allocator may behave slightly differently and have a different set of parameters to test. Add tests for those cases as well. On a basic x86 boot: # echo WRITE_BUDDY_AFTER_FREE > /sys/kernel/debug/provoke-crash/DIRECT [ 22.291950] lkdtm: Performing direct entry WRITE_BUDDY_AFTER_FREE [ 22.292983] lkdtm: Writing to the buddy page before free [ 22.293950] lkdtm: Attempting bad write to the buddy page after free # echo READ_BUDDY_AFTER_FREE > /sys/kernel/debug/provoke-crash/DIRECT [ 32.375601] lkdtm: Performing direct entry READ_BUDDY_AFTER_FREE [ 32.379896] lkdtm: Value in memory before free: 12345678 [ 32.383854] lkdtm: Attempting to read from freed memory [ 32.389309] lkdtm: Buddy page was not poisoned On x86 with CONFIG_DEBUG_PAGEALLOC and debug_pagealloc=on: # echo WRITE_BUDDY_AFTER_FREE > /sys/kernel/debug/provoke-crash/DIRECT [ 17.475533] lkdtm: Performing direct entry WRITE_BUDDY_AFTER_FREE [ 17.477360] lkdtm: Writing to the buddy page before free [ 17.479089] lkdtm: Attempting bad write to the buddy page after free [ 17.480904] BUG: unable to handle kernel paging request at ffff88000ebd8000 # echo READ_BUDDY_AFTER_FREE > /sys/kernel/debug/provoke-crash/DIRECT [ 14.606433] lkdtm: Performing direct entry READ_BUDDY_AFTER_FREE [ 14.607447] lkdtm: Value in memory before free: 12345678 [ 14.608161] lkdtm: Attempting to read from freed memory [ 14.608860] BUG: unable to handle kernel paging request at ffff88000eba3000 Note that arches without ARCH_SUPPORTS_DEBUG_PAGEALLOC may not produce the same crash. Signed-off-by: Laura Abbott <[email protected]> Signed-off-by: Kees Cook <[email protected]>
2016-03-01lkdtm: Update WRITE_AFTER_FREE testLaura Abbott1-4/+13
The SLUB allocator may use the first word of a freed block to store the freelist information. This may make it harder to test poisoning features. Change the WRITE_AFTER_FREE test to better match what the READ_AFTER_FREE test does and also print out a big more information. Signed-off-by: Laura Abbott <[email protected]> Signed-off-by: Kees Cook <[email protected]>
2016-03-01lkdtm: Add READ_AFTER_FREE testLaura Abbott1-0/+38
In a similar manner to WRITE_AFTER_FREE, add a READ_AFTER_FREE test to test free poisoning features. Sample output when no sanitization is present: # echo READ_AFTER_FREE > /sys/kernel/debug/provoke-crash/DIRECT [ 17.542473] lkdtm: Performing direct entry READ_AFTER_FREE [ 17.543866] lkdtm: Value in memory before free: 12345678 [ 17.545212] lkdtm: Attempting bad read from freed memory [ 17.546542] lkdtm: Memory was not poisoned with slub_debug=P: # echo READ_AFTER_FREE > /sys/kernel/debug/provoke-crash/DIRECT [ 22.415531] lkdtm: Performing direct entry READ_AFTER_FREE [ 22.416366] lkdtm: Value in memory before free: 12345678 [ 22.417137] lkdtm: Attempting bad read from freed memory [ 22.417897] lkdtm: Memory correctly poisoned, calling BUG Signed-off-by: Laura Abbott <[email protected]> Signed-off-by: Kees Cook <[email protected]>
2016-03-01MAINTAINERS: add myself as lkdtm maintainerKees Cook1-0/+5
Officially claim maintainership over the LKDTM code. Signed-off-by: Kees Cook <[email protected]>
2016-03-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds13-6/+275
Pull sparc fixes from David Miller: 1) System call tracing doesn't handle register contents properly across the trace. From Mike Frysinger. 2) Hook up copy_file_range 3) Build fix for 32-bit with newer tools. 4) New sun4v watchdog driver, from Wim Coekaerts. 5) Set context system call has to allow for servicable faults when we flush the register windows to memory * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Fix sparc64_set_context stack handling. sparc32: Add -Wa,-Av8 to KBUILD_CFLAGS. Add sun4v_wdt watchdog driver sparc: Fix system call tracing register handling. sparc: Hook up copy_file_range syscall.
2016-03-01sparc64: Fix sparc64_set_context stack handling.David S. Miller1-1/+1
Like a signal return, we should use synchronize_user_stack() rather than flush_user_windows(). Reported-by: Ilya Malakhov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-03-01sparc32: Add -Wa,-Av8 to KBUILD_CFLAGS.David S. Miller1-0/+6
Binutils used to be (erroneously) extremely permissive about instruction usage. But that got fixed and if you don't properly tell it to accept classes of instructions it will fail. This uncovered a specs bug on sparc in gcc where it wouldn't pass the proper options to binutils options. Deal with this in the kernel build by adding -Wa,-Av8 to KBUILD_CFLAGS. Reported-by: Al Viro <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-02-29extcon: palmas: Drop IRQF_EARLY_RESUME flagGrygorii Strashko1-2/+2
Palams extcon IRQs are nested threaded and wired to the Palmas inerrupt controller. So, this flag is not required for nested irqs anymore, since commit 3c646f2c6aa9 ("genirq: Don't suspend nested_thread irqs over system suspend") was merged. Cc: MyungJoo Ham <[email protected]> Cc: Chanwoo Choi <[email protected]> Cc: Tony Lindgren <[email protected]> Cc: Lee Jones <[email protected]> Cc: Roger Quadros <[email protected]> Cc: Nishanth Menon <[email protected]> Signed-off-by: Grygorii Strashko <[email protected]> Signed-off-by: Chanwoo Choi <[email protected]>
2016-02-28Linux 4.5-rc6Linus Torvalds1-1/+1
2016-02-28Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds2-131/+244
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Thomas Gleixner: "A rather largish series of 12 patches addressing a maze of race conditions in the perf core code from Peter Zijlstra" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Robustify task_function_call() perf: Fix scaling vs. perf_install_in_context() perf: Fix scaling vs. perf_event_enable() perf: Fix scaling vs. perf_event_enable_on_exec() perf: Fix ctx time tracking by introducing EVENT_TIME perf: Cure event->pending_disable race perf: Fix race between event install and jump_labels perf: Fix cloning perf: Only update context time when active perf: Allow perf_release() with !event->ctx perf: Do not double free perf: Close install vs. exit race
2016-02-28Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds5-7/+15
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "This update contains: - Hopefully the last ASM CLAC fixups - A fix for the Quark family related to the IMR lock which makes kexec work again - A off-by-one fix in the MPX code. Ironic, isn't it? - A fix for X86_PAE which addresses once more an unsigned long vs phys_addr_t hickup" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mpx: Fix off-by-one comparison with nr_registers x86/mm: Fix slow_virt_to_phys() for X86_PAE again x86/entry/compat: Add missing CLAC to entry_INT80_32 x86/entry/32: Add an ASM_CLAC to entry_SYSENTER_32 x86/platform/intel/quark: Change the kernel's IMR lock bit to false
2016-02-28Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixlet from Thomas Gleixner: "A trivial printk typo fix" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/deadline: Fix trivial typo in printk() message
2016-02-28Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds2-11/+8
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Gleixner: "Four small fixes for irqchip drivers: - Add missing low level irq handler initialization on mxs, so interrupts can acutally be delivered - Add a missing barrier to the GIC driver - Two fixes for the GIC-V3-ITS driver, addressing a double EOI write and a cache flush beyond the actual region" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/gic-v3: Add missing barrier to 32bit version of gic_read_iar() irqchip/mxs: Add missing set_handle_irq() irqchip/gicv3-its: Avoid cache flush beyond ITS_BASERn memory size irqchip/gic-v3-its: Fix double ICC_EOIR write for LPI in EOImode==1
2016-02-28Merge tag 'staging-4.5-rc6' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/android fix from Greg KH: "Here is one patch, for the android binder driver, to resolve a reported problem. Turns out it has been around for a while (since 3.15), so it is good to finally get it resolved. It has been in linux-next for a while with no reported issues" * tag 'staging-4.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: drivers: android: correct the size of struct binder_uintptr_t for BC_DEAD_BINDER_DONE
2016-02-28Merge tag 'usb-4.5-rc6' of ↵Linus Torvalds19-75/+127
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are a few USB fixes for 4.5-rc6 They fix a reported bug for some USB 3 devices by reverting the recent patch, a MAINTAINERS change for some drivers, some new device ids, and of course, the usual bunch of USB gadget driver fixes. All have been in linux-next for a while with no reported issues" * tag 'usb-4.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: MAINTAINERS: drop OMAP USB and MUSB maintainership usb: musb: fix DMA for host mode usb: phy: msm: Trigger USB state detection work in DRD mode usb: gadget: net2280: fix endpoint max packet for super speed connections usb: gadget: gadgetfs: unregister gadget only if it got successfully registered usb: gadget: remove driver from pending list on probe error Revert "usb: hub: do not clear BOS field during reset device" usb: chipidea: fix return value check in ci_hdrc_pci_probe() usb: chipidea: error on overflow for port_test_write USB: option: add "4G LTE usb-modem U901" USB: cp210x: add IDs for GE B650V3 and B850V3 boards USB: option: add support for SIM7100E usb: musb: Fix DMA desired mode for Mentor DMA engine usb: gadget: fsl_qe_udc: fix IS_ERR_VALUE usage usb: dwc2: USB_DWC2 should depend on HAS_DMA usb: dwc2: host: fix the data toggle error in full speed descriptor dma usb: dwc2: host: fix logical omissions in dwc2_process_non_isoc_desc usb: dwc3: Fix assignment of EP transfer resources usb: dwc2: Add extra delay when forcing dr_mode
2016-02-27Merge branch 'for-linus' of ↵Linus Torvalds3-37/+22
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs fixes from Al Viro. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: do_last(): ELOOP failure exit should be done after leaving RCU mode should_follow_link(): validate ->d_seq after having decided to follow namei: ->d_inode of a pinned dentry is stable only for positives do_last(): don't let a bogus return value from ->open() et.al. to confuse us fs: return -EOPNOTSUPP if clone is not supported hpfs: don't truncate the file when delete fails
2016-02-27Merge tag 'armsoc-fixes' of ↵Linus Torvalds24-105/+173
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "We didn't have a batch last week, so this one is slightly larger. None of them are scary though, a handful of fixes for small DT pieces, replacing properties with newer conventions. Highlights: - N900 fix for setting system revision - onenand init fix to avoid filesystem corruption - Clock fix for audio on Beaglebone-x15 - Fixes on shmobile to deal with CONFIG_DEBUG_RODATA (default y in 4.6) + misc smaller stuff" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: MAINTAINERS: Extend info, add wiki and ml for meson arch MAINTAINERS: alpine: add a new maintainer and update the entry ARM: at91/dt: fix typo in sama5d2 pinmux descriptions ARM: OMAP2+: Fix onenand initialization to avoid filesystem corruption Revert "regulator: tps65217: remove tps65217.dtsi file" ARM: shmobile: Remove shmobile_boot_arg ARM: shmobile: Move shmobile_smp_{mpidr, fn, arg}[] from .text to .bss ARM: shmobile: r8a7779: Remove remainings of removed SCU boot setup code ARM: shmobile: Move shmobile_scu_base from .text to .bss ARM: OMAP2+: Fix omap_device for module reload on PM runtime forbid ARM: OMAP2+: Improve omap_device error for driver writers ARM: DTS: am57xx-beagle-x15: Select SYS_CLK2 for audio clocks ARM: dts: am335x/am57xx: replace gpio-key,wakeup with wakeup-source property ARM: OMAP2+: Set system_rev from ATAGS for n900 ARM: dts: orion5x: fix the missing mtd flash on linkstation lswtgl ARM: dts: kirkwood: use unique machine name for ds112 ARM: dts: imx6: remove bogus interrupt-parent from CAAM node
2016-02-27do_last(): ELOOP failure exit should be done after leaving RCU modeAl Viro1-5/+4
... or we risk seeing a bogus value of d_is_symlink() there. Cc: [email protected] # v4.2+ Signed-off-by: Al Viro <[email protected]>
2016-02-27should_follow_link(): validate ->d_seq after having decided to followAl Viro1-0/+5
... otherwise d_is_symlink() above might have nothing to do with the inode value we've got. Cc: [email protected] # v4.2+ Signed-off-by: Al Viro <[email protected]>
2016-02-27namei: ->d_inode of a pinned dentry is stable only for positivesAl Viro1-2/+2
both do_last() and walk_component() risk picking a NULL inode out of dentry about to become positive, *then* checking its flags and seeing that it's not negative anymore and using (already stale by then) value they'd fetched earlier. Usually ends up oopsing soon after that... Cc: [email protected] # v3.13+ Signed-off-by: Al Viro <[email protected]>
2016-02-27do_last(): don't let a bogus return value from ->open() et.al. to confuse usAl Viro1-0/+4
... into returning a positive to path_openat(), which would interpret that as "symlink had been encountered" and proceed to corrupt memory, etc. It can only happen due to a bug in some ->open() instance or in some LSM hook, etc., so we report any such event *and* make sure it doesn't trick us into further unpleasantness. Cc: [email protected] # v3.6+, at least Signed-off-by: Al Viro <[email protected]>
2016-02-27fs: return -EOPNOTSUPP if clone is not supportedChristoph Hellwig1-2/+4
-EBADF is a rather confusing error if an operations is not supported, and nfsd gets rather upset about it. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Al Viro <[email protected]>
2016-02-27hpfs: don't truncate the file when delete failsMikulas Patocka1-28/+3
The delete opration can allocate additional space on the HPFS filesystem due to btree split. The HPFS driver checks in advance if there is available space, so that it won't corrupt the btree if we run out of space during splitting. If there is not enough available space, the HPFS driver attempted to truncate the file, but this results in a deadlock since the commit 7dd29d8d865efdb00c0542a5d2c87af8c52ea6c7 ("HPFS: Introduce a global mutex and lock it on every callback from VFS"). This patch removes the code that tries to truncate the file and -ENOSPC is returned instead. If the user hits -ENOSPC on delete, he should try to delete other files (that are stored in a leaf btree node), so that the delete operation will make some space for deleting the file stored in non-leaf btree node. Reported-by: Al Viro <[email protected]> Signed-off-by: Mikulas Patocka <[email protected]> Cc: [email protected] # 2.6.39+ Signed-off-by: Al Viro <[email protected]>
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