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MVF is a family while MVF600 is a particular SoC in the family. We
generally prefer to use SoC rather than family name in compatible string
to define a particular type of fec device. And this is how fec_dt_ids
works for all those IMX fec variants. Let's change mvf to mvf600 to
have it work in the same way.
Signed-off-by: Shawn Guo <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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o After change in EPORT features of 82xx adapter, netdev->features needs to
be updated to reflect EPORT feature updates but driver was manipulating
netdev->features at wrong place.
o This patch uses netdev_update_features() and .ndo_fix_features() to
update netdev->features properly.
Signed-off-by: Shahed Shaikh <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Code is removed because netdev->trans_start updates made by the driver
will be ignored by the kernel.
Signed-off-by: Sony Chacko <[email protected]>
Signed-off-by: Shahed Shaikh <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Fix error paths in probe to assign proper error codes to probe return value.
Signed-off-by: Sony Chacko <[email protected]>
Signed-off-by: Shahed Shaikh <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: Nithin Nayak Sujir <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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After resetting the device, the driver waits for a signature to be
updated to know that firmware has completed initialization. However, the
call to tg3_poll_fw() is being done too late and we're writing to the
GRC_MODE register before it has completely initialized, causing
contention with firmware. This logic has existed since day one but is
causing PCIE link to go down randomly at startup on one platform once
every few hundred reboots.
Move the tg3_poll_fw() up to before we write to the GRC_MODE register
after reset.
Signed-off-by: Nithin Nayak Sujir <[email protected]>
Signed-off-by: Michael Chan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The exynos_adc device structure was wrongly extracted from the dev*
correcting the same.
Using the regular conversion of
struct device* -> struct platform_device* -> struct exynos_adc* seems wrong.
Instead we should be doing
struct device* -> struct iio_dev* -> struct exynos_adc*
Signed-off-by: Naveen Krishna Chatradhi <[email protected]>
Reviewed-by: Doug Anderson <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
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Signed-off-by: Denis Ciocca <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
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This patch fixes below build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=m:
drivers/built-in.o: In function `ad5064_i2c_write':
drivers/iio/dac/ad5064.c:608: undefined reference to `i2c_master_send'
drivers/built-in.o: In function `ad5064_i2c_register_driver':
drivers/iio/dac/ad5064.c:646: undefined reference to `i2c_register_driver'
drivers/built-in.o: In function `ad5064_i2c_unregister_driver':
drivers/iio/dac/ad5064.c:651: undefined reference to `i2c_del_driver'
make: *** [vmlinux] Error 1
When CONFIG_I2C=m, meaning we can't build the drivers in with I2C support.
Thus don't allow the drivers to be compiled as built-in when CONFIG_I2C=m.
The real fix though is to break the driver apart into a SPI part, an I2C part
and a common part. But that's something for 3.11 while this is something for
3.10/stable.
Reported-by: Wu Fengguang <[email protected]>
Reported-by: Randy Dunlap <[email protected]>
Signed-off-by: Axel Lin <[email protected]>
Acked-by: Lars-Peter Clausen <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
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Fix to return -EINVAL in the i2c device found error handling
case instead of 0, as done elsewhere in this function.
And also correct the fail1 and fail2 lable to do the right thing.
Signed-off-by: Wei Yongjun <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
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This fixes 'preenable failed: -EINVAL' error when using this driver.
Signed-off-by: Michał Mirosław <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
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Commit d3f79584a8b5 ("ARM: cleanup undefined instruction entry code")
improved the register scheduling when handling undefined instructions.
A side effect of this is that r5 is now used as a temporary, whilst the
VFP probing code relies on r5 containing a non-zero value when VFP is
not supported.
This patch fixes the VFP detection code so that we don't rely on the
contents of r5. Without this patch, Linux dies loudly on CPUs without
VFP support.
Signed-off-by: Will Deacon <[email protected]>
Signed-off-by: Russell King <[email protected]>
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If one reads /proc/$PID/smaps, the mmap_sem belonging to the
address space of the task being examined is locked for reading.
All the pages of the vmas belonging to the task's address space
are then walked with this lock held.
If a gate_vma is present in the architecture, it too is examined
by the fs/proc/task_mmu.c code. As gate_vma doesn't belong to the
address space of the task though, its pages are not walked.
A recent cleanup (commit f6604efe) of the gate_vma initialisation
code set the vm_mm value to &init_mm. Unfortunately a non-NULL
vm_mm value in the gate_vma will cause the task_mmu code to attempt
to walk the pages of the gate_vma (with no mmap-sem lock held). If
one enables Transparent Huge Page support and vm debugging, this
will then cause OOPses as pmd_trans_huge_lock is called without
mmap_sem being locked.
This patch removes the .vm_mm value from gate_vma, restoring the
original behaviour of the task_mmu code.
Signed-off-by: Steve Capper <[email protected]>
Signed-off-by: Russell King <[email protected]>
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Make the SHA1 asm code ABI conformant by making sure all stack
accesses occur above the stack pointer.
Origin:
http://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=1a9d60d2
Signed-off-by: Ard Biesheuvel <[email protected]>
Acked-by: Nicolas Pitre <[email protected]>
Cc: [email protected]
Signed-off-by: Russell King <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
From Simon Horman:
Correct USB PHY initialisation on the marzen board.
* tag 'renesas-boards-marzen-fixes-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: marzen: Use error values in usb_power_*
Signed-off-by: Olof Johansson <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes
From Paul Walmsley:
Fix the OMAP serial driver to work correctly on OMAP4 when booting
with DT.
* tag 'omap-fixes-a-for-3.10-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending:
ARM: OMAP2+: hwmod: Remove sysc slave idle and auto idle apis
SERIAL: OMAP: Remove the slave idle handling from the driver
ARM: OMAP2+: serial: Remove the un-used slave idle hooks
ARM: OMAP2+: hwmod-data: UART IP needs software control to manage sidle modes
ARM: OMAP2+: hwmod: Add a new flag to handle SIDLE in SWSUP only in active
ARM: OMAP2+: hwmod: Fix sidle programming in _enable_sysc()/_idle_sysc()
Signed-off-by: Olof Johansson <[email protected]>
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As suggested by David Howells <[email protected]>, use
asm-generic/param.h and uapi/asm-generic/param.h for AVR32.
It also fixes building warnings caused by redefinitions of HZ:
In file included from /ws/linux/kernel/linux.git/include/uapi/linux/param.h:4,
from include/linux/timex.h:63,
from include/linux/jiffies.h:8,
from include/linux/ktime.h:25,
from include/linux/timer.h:5,
from include/linux/workqueue.h:8,
from include/linux/srcu.h:34,
from include/linux/notifier.h:15,
from include/linux/memory_hotplug.h:6,
from include/linux/mmzone.h:777,
from include/linux/gfp.h:4,
from arch/avr32/mm/init.c:10:
/ws/linux/kernel/linux.git/arch/avr32/include/asm/param.h:6:1: warning: "HZ" redefined
In file included from /ws/linux/kernel/linux.git/arch/avr32/include/asm/param.h:4,
from /ws/linux/kernel/linux.git/include/uapi/linux/param.h:4,
from include/linux/timex.h:63,
from include/linux/jiffies.h:8,
from include/linux/ktime.h:25,
from include/linux/timer.h:5,
from include/linux/workqueue.h:8,
from include/linux/srcu.h:34,
from include/linux/notifier.h:15,
from include/linux/memory_hotplug.h:6,
from include/linux/mmzone.h:777,
from include/linux/gfp.h:4,
from arch/avr32/mm/init.c:10:
/ws/linux/kernel/linux.git/arch/avr32/include/uapi/asm/param.h:6:1: warning: this is the location of the previous definition
Signed-off-by: Jiang Liu <[email protected]>
Cc: Hans-Christian Egtvedt <[email protected]>
Cc: Haavard Skinnemoen <[email protected]>
Cc: [email protected]
Signed-off-by: Hans-Christian Egtvedt <[email protected]>
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The lockless RPC_IS_QUEUED() test in __rpc_execute means that we need to
be careful about ordering the calls to rpc_test_and_set_running(task) and
rpc_clear_queued(task). If we get the order wrong, then we may end up
testing the RPC_TASK_RUNNING flag after __rpc_execute() has looped
and changed the state of the rpc_task.
Signed-off-by: Trond Myklebust <[email protected]>
Cc: [email protected]
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build warning after merge of the tty.current tree)
Fix build warning at mxser.c introduced by dfc7b837c7f9 (tty: mxser: fix
usage of opmode_ioaddr)
Signed-off-by: Matwey V. Kornilov <[email protected]>
Reported-by: kbuild test robot <[email protected]>
Reported-by: Stephen Rothwell <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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virt_to_page() is typically implemented as a macro containing a cast so
that it will accept both pointers and unsigned long without causing a
warning.
But MIPS virt_to_page() uses virt_to_phys which is a function so passing
an unsigned long will cause a warning:
CC mm/page_alloc.o
mm/page_alloc.c: In function ‘free_reserved_area’:
mm/page_alloc.c:5161:3: warning: passing argument 1 of ‘virt_to_phys’ makes pointer from integer without a cast [enabled by default]
arch/mips/include/asm/io.h:119:100: note: expected ‘const volatile void *’ but argument is of type ‘long unsigned int’
All others users of virt_to_page() in mm/ are passing a void *.
Signed-off-by: Ralf Baechle <[email protected]>
Reported-by: Eunbong Song <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Linus Torvalds <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes
Pull mfd fixes from Samuel Ortiz:
"This is the first batch of MFD fixes for 3.10.
It's bigger than I would like, most of it is due to the big ab/db8500
merge that went through during the 3.10 merge window.
So we have:
- Some build fixes for the tps65912 and ab8500 drivers.
- A couple of build fixes for the the si476x driver with pre 4.3 gcc
compilers.
- A few runtime breakage fixes (probe failures or oopses) for the
ab8500 and db8500 drivers.
- Some sparse or regular gcc warning fixes for the si476x, ab8500 and
cros_ec drivers."
* tag 'mfd-fixes-3.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes:
mfd: ab8500-sysctrl: Let sysctrl driver work without pdata
mfd: db8500-prcmu: Update stored DSI PLL divider value
mfd: ab8500-sysctrl: Always enable pm_power_off handler
mfd: ab8500-core: Pass GPADC compatible string to MFD core
mfd: db8500-prcmu: Supply the pdata_size attribute for db8500-thermal
mfd: ab8500-core: Use the correct driver name when enabling gpio/pinctrl
mfd: ab8500: Pass AB8500 IRQ to debugfs code by resource
mfd: ab8500-gpadc: Suppress 'ignoring regulator_enable() return value' warning
mfd: ab8500-sysctrl: Set sysctrl_dev during probe
mfd: ab8500-sysctrl: Fix sparse warning
mfd: abx500-core: Fix sparse warning
mfd: ab8500: Debugfs code depends on gpadc
mfd: si476x: Use get_unaligned_be16() for unaligned be16 loads
mfd: cros_ec_spi: Use %z to format pointer differences
mfd: si476x: Do not use binary constants
mfd: tps65912: Select MFD_CORE
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio fixes from Rusty Russell:
"A build fix and a uapi exposure fix. The build fix is later than I
liked, but my first version broke linux-next due to overzealous header
clean."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
virtio_console: fix uapi header
Hoist memcpy_fromiovec/memcpy_toiovec into lib/
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As a relatively new ABI, N64 only had getdents syscall while other modern
architectures have getdents64.
This was noticed when Python 3.3 shifted to the latter one for aarch64.
[[email protected]: The history of getdents64 is a little complicated.
Commit 1a1d77dd589de5a567fa95e36aa6999c704ceca4 [Merge with 2.4.0-test7.]
added N64 getdents(2) to arch/mips64/kernel/scall_64.S as syscall 5213,
then dropped again in 578720675c44e54e8aa7c68f6dce59ed37ce3d3b [Overhaul
of the 64-bit syscall interface. Now heritage free.] for 2.5.18 in 2002.]
Signed-off-by: Aron Xu <[email protected]>
Acked-by: David Daney <[email protected]>
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/5285/
Signed-off-by: Ralf Baechle <[email protected]>
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Fix to check double free of insn_slot at arch_remove_kprobe
as other arches do.
Signed-off-by: Masami Hiramatsu <[email protected]>
Cc: David Daney <[email protected]>
Cc: Maneesh Soni <[email protected]>
Cc: Victor Kamensky <[email protected]>
Cc: [email protected]
Cc: Ingo Molnar <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/5293/
Signed-off-by: Ralf Baechle <[email protected]>
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As multiplatform build is being adopted by more and more ARM platforms, initcall
function should be used very carefully. For example, when both arm_big_little_dt
and cpufreq-cpu0 drivers are compiled in, arm_big_little_dt driver may try to
register even if we had platform device for cpufreq-cpu0 registered.
To eliminate this undesired the effect, the patch changes arm_big_little_dt
driver to have it instantiated as a platform_driver. Then it will only run on
platforms that create the platform_device "arm-bL-cpufreq-dt".
Reported-and-tested-by: Rob Herring <[email protected]>
Signed-off-by: Viresh Kumar <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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If arm_big_little_dt driver is enabled, then it will always try to register with
big LITTLE cpufreq core driver. In case DT doesn't have relevant data for cpu
nodes, i.e. operating points aren't present, then we should exit early and
shouldn't register with big LITTLE cpufreq core driver. Otherwise we will fail
continuously from the driver->init() routine.
This patch fixes this issue.
Reported-and-tested-by: Jon Medhurst <[email protected]>
Reviewed-by: Jon Medhurst <[email protected]>
Signed-off-by: Viresh Kumar <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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on i386:
CONFIG_ACPI_PROCESSOR=m
CONFIG_X86_E_POWERSAVER=y
drivers/built-in.o: In function `eps_cpu_init.part.8':
e_powersaver.c:(.text.unlikely+0x2243): undefined reference to `acpi_processor_register_performance'
e_powersaver.c:(.text.unlikely+0x22a2): undefined reference to `acpi_processor_unregister_performance'
e_powersaver.c:(.text.unlikely+0x246b): undefined reference to `acpi_processor_get_bios_limit'
X86_E_POWERSAVER should also depend on ACPI_PROCESSOR.
Signed-off-by: Rafal Bilski <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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- As suggested by Gleb, wrap calls to gfn_to_pfn() with srcu_read_lock/unlock().
Memory slots should be acccessed from a SRCU read section.
- kvm_mips_map_page() now returns an error code to it's callers, instead of
calling panic() if it cannot find a mapping for a particular gfn.
Signed-off-by: Sanjay Lal <[email protected]>
Signed-off-by: Gleb Natapov <[email protected]>
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user visible API.
Signed-off-by: Sanjay Lal <[email protected]>
Signed-off-by: Gleb Natapov <[email protected]>
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This patch updates the marzen board code as if USB PHY isn't enabled
they phy will have a value set by ERR_PTR() rather than be NULL.
Without this patch a NULL pointer dereference and kernel panic
occurs on initialisation of USB on marzen.
This resolves a regression introduced in 3.10-rc1 by
b7fa5c2aec5be083eb2719b405089703608e9bc6
("usb: phy: return -ENXIO when PHY layer isn't enabled").
Tested-by: Nguyen Hong Ky <[email protected]>
Signed-off-by: Simon Horman <[email protected]>
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local_irq_enable() may expand into very different code, so it rather should
stay in C. Also this keeps the assembler code size constant which keeps
the rollback code simple. So it's best to split r4k_wait into two parts,
one C and one assembler.
Finally add the local_irq_enable() to r4k_wait to ensure the WAIT
instruction in __r4k_wait() will work properly.
Signed-off-by: Ralf Baechle <[email protected]>
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Signed-off-by: Ralf Baechle <[email protected]>
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Signed-off-by: Ralf Baechle <[email protected]>
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The generic idle loop has already disabled interrupts so this is redundant.
Signed-off-by: Ralf Baechle <[email protected]>
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Without this, the
WARN_ON_ONCE(irqs_disabled());
in the idle loop will be triggered.
Signed-off-by: Ralf Baechle <[email protected]>
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Signed-off-by: Ralf Baechle <[email protected]>
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Signed-off-by: Ralf Baechle <[email protected]>
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Signed-off-by: Ralf Baechle <[email protected]>
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Signed-off-by: Ralf Baechle <[email protected]>
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Duplicate and has no business in this header file.
Signed-off-by: Ralf Baechle <[email protected]>
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If <linux/linkage.h> has not been included before <linux/printk.h>,
a build error like the below one will result:
CC arch/mips/kernel/idle.o
In file included from arch/mips/kernel/idle.c:17:0:
include/linux/printk.h:109:1: error: data definition has no type or storage class [-Werror]
include/linux/printk.h:109:1: error: type defaults to ‘int’ in declaration of ‘asmlinkage’ [-Werror=implicit-int]
include/linux/printk.h:110:1: error: ‘format’ attribute only applies to function types [-Werror=attributes]
include/linux/printk.h:110:1: error: expected ‘,’ or ‘;’ before ‘int’
include/linux/printk.h:114:1: error: data definition has no type or storage class [-Werror]
include/linux/printk.h:114:1: error: type defaults to ‘int’ in declaration of ‘asmlinkage’ [-Werror=implicit-int]
include/linux/printk.h:115:1: error: ‘format’ attribute only applies to function types [-Werror=attributes]
include/linux/printk.h:115:1: error: expected ‘,’ or ‘;’ before ‘int’
include/linux/printk.h:117:1: error: data definition has no type or storage class [-Werror]
include/linux/printk.h:117:1: error: type defaults to ‘int’ in declaration of ‘asmlinkage’ [-Werror=implicit-int]
include/linux/printk.h:118:1: error: ‘format’ attribute only applies to function types [-Werror=attributes]
include/linux/printk.h:118:1: error: ‘__cold__’ attribute ignored [-Werror=attributes]
include/linux/printk.h:118:1: error: expected ‘,’ or ‘;’ before ‘asmlinkage’
include/linux/printk.h:122:1: error: data definition has no type or storage class [-Werror]
include/linux/printk.h:122:1: error: type defaults to ‘int’ in declaration of ‘asmlinkage’ [-Werror=implicit-int]
include/linux/printk.h:123:1: error: ‘format’ attribute only applies to function types [-Werror=attributes]
include/linux/printk.h:123:1: error: ‘__cold__’ attribute ignored [-Werror=attributes]
include/linux/printk.h:123:1: error: expected ‘,’ or ‘;’ before ‘int’
In file included from include/linux/kernel.h:14:0,
from include/linux/sched.h:15,
from arch/mips/kernel/idle.c:18:
include/linux/dynamic_debug.h: In function ‘ddebug_dyndbg_module_param_cb’:
include/linux/dynamic_debug.h:124:3: error: implicit declaration of function ‘printk’ [-Werror=implicit-function-declaration]
Fixed by including <linux/linkage.h>.
Signed-off-by: Ralf Baechle <[email protected]>
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Add CPU ID for Ivybrigde processor.
Signed-off-by: Dirk Brandewie <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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With the rwsem lock around
__cpufreq_governor(policy, CPUFREQ_GOV_POLICY_EXIT), we
get circular dependency when we call sysfs_remove_group().
======================================================
[ INFO: possible circular locking dependency detected ]
3.9.0-rc7+ #15 Not tainted
-------------------------------------------------------
cat/2387 is trying to acquire lock:
(&per_cpu(cpu_policy_rwsem, cpu)){+++++.}, at: [<c02f6179>] lock_policy_rwsem_read+0x25/0x34
but task is already holding lock:
(s_active#41){++++.+}, at: [<c00f9bf7>] sysfs_read_file+0x4f/0xcc
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (s_active#41){++++.+}:
[<c0055a79>] lock_acquire+0x61/0xbc
[<c00fabf1>] sysfs_addrm_finish+0xc1/0x128
[<c00f9819>] sysfs_hash_and_remove+0x35/0x64
[<c00fbe6f>] remove_files.isra.0+0x1b/0x24
[<c00fbea5>] sysfs_remove_group+0x2d/0xa8
[<c02f9a0b>] cpufreq_governor_interactive+0x13b/0x35c
[<c02f61df>] __cpufreq_governor+0x2b/0x8c
[<c02f6579>] __cpufreq_set_policy+0xa9/0xf8
[<c02f6b75>] store_scaling_governor+0x61/0x100
[<c02f6f4d>] store+0x39/0x60
[<c00f9b81>] sysfs_write_file+0xed/0x114
[<c00b3fd1>] vfs_write+0x65/0xd8
[<c00b424b>] sys_write+0x2f/0x50
[<c000cdc1>] ret_fast_syscall+0x1/0x52
-> #0 (&per_cpu(cpu_policy_rwsem, cpu)){+++++.}:
[<c0055253>] __lock_acquire+0xef3/0x13dc
[<c0055a79>] lock_acquire+0x61/0xbc
[<c03ee1f5>] down_read+0x25/0x30
[<c02f6179>] lock_policy_rwsem_read+0x25/0x34
[<c02f6edd>] show+0x21/0x58
[<c00f9c0f>] sysfs_read_file+0x67/0xcc
[<c00b40a7>] vfs_read+0x63/0xd8
[<c00b41fb>] sys_read+0x2f/0x50
[<c000cdc1>] ret_fast_syscall+0x1/0x52
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(s_active#41);
lock(&per_cpu(cpu_policy_rwsem, cpu));
lock(s_active#41);
lock(&per_cpu(cpu_policy_rwsem, cpu));
*** DEADLOCK ***
2 locks held by cat/2387:
#0: (&buffer->mutex){+.+.+.}, at: [<c00f9bcd>] sysfs_read_file+0x25/0xcc
#1: (s_active#41){++++.+}, at: [<c00f9bf7>] sysfs_read_file+0x4f/0xcc
stack backtrace:
[<c0011d55>] (unwind_backtrace+0x1/0x9c) from [<c03e9a09>] (print_circular_bug+0x19d/0x1e8)
[<c03e9a09>] (print_circular_bug+0x19d/0x1e8) from [<c0055253>] (__lock_acquire+0xef3/0x13dc)
[<c0055253>] (__lock_acquire+0xef3/0x13dc) from [<c0055a79>] (lock_acquire+0x61/0xbc)
[<c0055a79>] (lock_acquire+0x61/0xbc) from [<c03ee1f5>] (down_read+0x25/0x30)
[<c03ee1f5>] (down_read+0x25/0x30) from [<c02f6179>] (lock_policy_rwsem_read+0x25/0x34)
[<c02f6179>] (lock_policy_rwsem_read+0x25/0x34) from [<c02f6edd>] (show+0x21/0x58)
[<c02f6edd>] (show+0x21/0x58) from [<c00f9c0f>] (sysfs_read_file+0x67/0xcc)
[<c00f9c0f>] (sysfs_read_file+0x67/0xcc) from [<c00b40a7>] (vfs_read+0x63/0xd8)
[<c00b40a7>] (vfs_read+0x63/0xd8) from [<c00b41fb>] (sys_read+0x2f/0x50)
[<c00b41fb>] (sys_read+0x2f/0x50) from [<c000cdc1>] (ret_fast_syscall+0x1/0x52)
This lock isn't required while calling __cpufreq_governor(policy,
CPUFREQ_GOV_POLICY_EXIT). Remove it.
Signed-off-by: Viresh Kumar <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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Currently, drivers/acpi/device_pm.c depends on CONFIG_PM and all of
the functions defined in there are replaced with static inline stubs
if that option is unset. However, CONFIG_PM means, roughly, "runtime
PM or suspend/hibernation support" and some of those functions are
useful regardless of that. For example, they are used by the ACPI
fan driver for controlling fans and acpi_device_set_power() is called
during device removal. Moreover, device initialization may depend on
setting device power states properly.
For these reasons, make the routines manipulating ACPI device power
states defined in drivers/acpi/device_pm.c available for CONFIG_PM
unset too.
Reported-by: Zhang Rui <[email protected]>
Reported-and-tested-by: Michel Lespinasse <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Cc: 3.9+ <[email protected]>
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A check for a valid plat->sysctrl was introduced in:
2377e52 mfd: ab8500-sysctrl: Error check clean up
but the driver works just fine even without that initialization data,
and enforcing it breaks existing platforms for no reason.
This patch removes the check and let the driver go ahead with probe.
Acked-by: Linus Walleij <[email protected]>
Signed-off-by: Fabio Baltieri <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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On errors in batadv_mesh_init(), bat_counters will be freed in both
batadv_mesh_free() and batadv_softif_init_late(). This patch fixes this
by returning earlier from batadv_softif_init_late() in case of errors in
batadv_mesh_init() and by setting bat_counters to NULL after freeing.
Signed-off-by: Martin Hundebøll <[email protected]>
Signed-off-by: Marek Lindner <[email protected]>
Signed-off-by: Antonio Quartulli <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED subsystem fix from Bryan Wu.
* 'leds-fixes-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
leds: leds-gpio: reserve gpio before using it
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This reverts commit a99d76f (leds: leds-gpio: use gpio_request_one)
and commit 2d7c22f (leds: leds-gpio: set devm_gpio_request_one()
flags param correctly) which was a fix of the first one.
The conversion to devm_gpio_request in commit e3b1d44c (leds:
leds-gpio: use devm_gpio_request_one) is not reverted.
The problem is that gpio_cansleep() and gpio_get_value_cansleep()
calls can crash if the gpio is not first reserved. Incidentally this
same bug existed earlier and was fixed similarly in commit d95cbe61
(leds: Fix potential leds-gpio oops). But the OOPS is real. It happens
when GPIOs are provided by module which is not yet loaded.
So this fixes the following BUG during my ALIX boot (3.9.2-vanilla):
BUG: unable to handle kernel NULL pointer dereference at 0000004c
IP: [<c11287d6>] __gpio_cansleep+0xe/0x1a
*pde = 00000000
Oops: 0000 [#1] SMP
Modules linked in: leds_gpio(+) via_rhine mii cs5535_mfd mfd_core
geode_rng rng_core geode_aes isofs nls_utf8 nls_cp437 vfat fat
ata_generic pata_amd pata_cs5536 pata_acpi libata ehci_pci ehci_hcd
ohci_hcd usb_storage usbcore usb_common sd_mod scsi_mod squashfs loop
Pid: 881, comm: modprobe Not tainted 3.9.2 #1-Alpine
EIP: 0060:[<c11287d6>] EFLAGS: 00010282 CPU: 0
EIP is at __gpio_cansleep+0xe/0x1a
EAX: 00000000 EBX: cf364018 ECX: c132b8b9 EDX: 00000000
ESI: c13993a4 EDI: c1399370 EBP: cded9dbc ESP: cded9dbc
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
CR0: 8005003b CR2: 0000004c CR3: 0f0c4000 CR4: 00000090
DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
DR6: ffff0ff0 DR7: 00000400
Process modprobe (pid: 881, ti=cded8000 task=cf094aa0 task.ti=cded8000)
Stack:
cded9de0 d09471cb 00000000 c1399260 cf364014 00000000 c1399260 c1399254
d0949014 cded9df4 c118cd59 c1399260 d0949014 d0949014 cded9e08 c118ba47
c1399260 d0949014 c1399294 cded9e1c c118bb75 cded9e24 d0949014 00000000
Call Trace:
[<d09471cb>] gpio_led_probe+0xba/0x203 [leds_gpio]
[<c118cd59>] platform_drv_probe+0x26/0x48
[<c118ba47>] driver_probe_device+0x75/0x15c
[<c118bb75>] __driver_attach+0x47/0x63
[<c118a727>] bus_for_each_dev+0x3c/0x66
[<c118b6f9>] driver_attach+0x14/0x16
[<c118bb2e>] ? driver_probe_device+0x15c/0x15c
[<c118b3d5>] bus_add_driver+0xbd/0x1bc
[<d08b4000>] ? 0xd08b3fff
[<d08b4000>] ? 0xd08b3fff
[<c118bffc>] driver_register+0x74/0xec
[<d08b4000>] ? 0xd08b3fff
[<c118c8e8>] platform_driver_register+0x38/0x3a
[<d08b400d>] gpio_led_driver_init+0xd/0x1000 [leds_gpio]
[<c100116c>] do_one_initcall+0x6b/0x10f
[<d08b4000>] ? 0xd08b3fff
[<c105e918>] load_module+0x1631/0x1907
[<c10975d6>] ? insert_vmalloc_vmlist+0x14/0x43
[<c1098d5b>] ? __vmalloc_node_range+0x13e/0x15f
[<c105ec50>] sys_init_module+0x62/0x77
[<c1257888>] syscall_call+0x7/0xb
EIP: [<c11287d6>] __gpio_cansleep+0xe/0x1a SS:ESP 0068:cded9dbc
CR2: 000000000000004c
---[ end trace 5308fb20d2514822 ]---
Signed-off-by: Timo Teräs <[email protected]>
Cc: Sachin Kamat <[email protected]>
Cc: Raphael Assenat <[email protected]>
Cc: Trent Piepho <[email protected]>
Cc: Javier Martinez Canillas <[email protected]>
Cc: Arnaud Patard <[email protected]>
Cc: Ezequiel Garcia <[email protected]>
Acked-by: Jingoo Han <[email protected]>
Signed-off-by: Bryan Wu <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c bugfixes from Wolfram Sang:
"These should have been in rc2 but I missed it due to working on devm
longer than expected.
There is one ID addition, since we are touching the driver anyhow.
And the feature bit documentation is one outcome of a debug session
and will make it easier for users to work around problems. The rest
is typical driver bugfixes."
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: suppress lockdep warning on delete_device
i2c: mv64xxx: work around signals causing I2C transactions to be aborted
i2c: i801: Document feature bits in modinfo
i2c: designware: add Intel BayTrail ACPI ID
i2c: designware: always clear interrupts before enabling them
i2c: designware: fix RX FIFO overrun
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Since commit c8801a8 (regulator: core: Mark all get and enable calls as
__must_check) we need to check the value returned by 'regulator_enable()'.
Do this check to get rid of the following build warning:
drivers/staging/imx-drm/imx-tve.c: In function 'imx_tve_probe':
drivers/staging/imx-drm/imx-tve.c:671:19: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result]
Signed-off-by: Fabio Estevam <[email protected]>
Acked-by: Shawn Guo <[email protected]>
Acked-by: Sascha Hauer <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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