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ARM: tegra: implement common DMA and resets DT bindings
This series converts the Tegra DTs and drivers to use the common/
standard DMA and reset bindings, rather than custom bindings. It also
adds complete documentation for the Tegra clock bindings without
actually changing any binding definitions.
This conversion relies on a few sets of patches in branches from outside
the Tegra tree:
1) A patch to add an DMA channel request API which allows deferred probe
to be implemented.
2) A patch to implement a common part of the of_xlate function for DMA
controllers.
3) Some ASoC patches (which in turn rely on (1) above), which support
deferred probe during DMA channel allocation.
4) The Tegra clock driver changes for 3.14.
Consequently, this branch is based on a merge of all of those external
branches.
In turn, this branch is or will be pulled into a few places that either
rely on features introduced here, or would otherwise conflict with the
patches:
a) Tegra's own for-3.14/powergate and for-4.14/dt branches, to avoid
conflicts.
b) The DRM tree, which introduces new code that relies on the reset
controller framework introduced in this branch, and to avoid
conflicts.
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Tegra's clock driver now provides an implementation of the common
reset API (include/linux/reset.h). Use this instead of the old Tegra-
specific API; that will soon be removed.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
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For exmaple, keycode: KEY_OK(0x160) is changed by "and" operation with
KEY_MAX(0x2ff) to KEY_KPENTER(96).
Signed-off-by: Andrew Liu <andrew.liu200917@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge first round of changes for 3.13 merge window.
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There is a bug in keypad_probe() where we do:
kp->irq_press = platform_get_irq_byname(pdev, "press");
kp->irq_release = platform_get_irq_byname(pdev, "release");
if (kp->irq_press < 0 || kp->irq_release < 0) {
The problem is that these irq variables are unsigned so the error
handling doesn't work. I've changed them to signed values.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Renesas ARM platforms are transitioning from single-platform to
multi-platform kernels using the new ARCH_SHMOBILE_MULTI. Make the
driver available on all ARM platforms to enable it on both ARCH_SHMOBILE
and ARCH_SHMOBILE_MULTI, and increase build testing coverage with
COMPILE_TEST.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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There is plenty of consumer hardware (e.g., mac books) that does not use AT
keyboards or PS/2 mice. It therefore makes sense for distro kernels to
build the related drivers as modules to avoid loading them on hardware that
does not need them. As such, these options should no longer be protected by
EXPERT.
Moreover, building these drivers as modules gets rid of the following ugly
error during boot:
[ 2.337745] i8042: PNP: No PS/2 controller found. Probing ports directly.
[ 3.439537] i8042: No controller found
Signed-off-by: Tom Gundersen <teg@jklm.no>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add the missing clk_disable_unprepare() before return
from nspire_keypad_open() in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge with mainline to bring in changes to input subsystem that were
committed through other trees.
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'of_match_ptr' is defined in linux/of.h. Include it explicitly.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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'of_match_ptr' is defined in linux/of.h. Include it explicitly.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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'of_match_ptr' is defined in linux/of.h. Include it explicitly.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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A NULL pointer dereference exception occurs in the driver probe function when
device tree is used. The pdata pointer will be NULL in this case, but the code
dereferences it in all cases. When device tree is used, a platform data
structure is allocated and initialized, and in all cases this pointer is copied
to the driver's private data, so the variable being tested should be accessed
through the driver's private data structure.
Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge with mainline to bring in sync changes to cyttsp4 driver.
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After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HARDIRQS can be removed.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
"A new driver for slidebar on Ideapad laptops and a bunch of assorted
driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (32 commits)
Input: add SYN_MAX and SYN_CNT constants
Input: max11801_ts - convert to devm
Input: egalax-ts - fix typo and improve text
Input: MAINTAINERS - change maintainer for cyttsp driver
Input: cyttsp4 - kill 'defined but not used' compiler warnings
Input: add driver for slidebar on Lenovo IdeaPad laptops
Input: omap-keypad - set up irq type from DT
Input: omap-keypad - enable wakeup capability for keypad.
Input: omap-keypad - clear interrupts on open
Input: omap-keypad - convert to threaded IRQ
Input: omap-keypad - use bitfiled instead of hardcoded values
Input: cyttsp4 - remove useless NULL test from cyttsp4_watchdog_timer()
Input: wacom - fix error return code in wacom_probe()
Input: as5011 - fix error return code in as5011_probe()
Input: keyboard, serio - simplify use of devm_ioremap_resource
Input: tegra-kbc - simplify use of devm_ioremap_resource
Input: htcpen - fix incorrect placement of __initdata
Input: qt1070 - add power management ops
Input: wistron_btns - add MODULE_DEVICE_TABLE
Input: wistron_btns - mark the Medion MD96500 keymap as tested
...
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Merge first round of changes for 3.12 merge window.
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OMAP4 is DT only, so read the keypad IRQ type from DT instead hard-coding
it in the driver.
Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Enable/disable IRQ wake in suspend/resume handlers
to make the keypad wakeup capable.
Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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According to TRM, the recommended way for keyboard controller
initialization is clear the interrupt-status register, then set up
certain keyboard events for generating an interrupt request and
set up expected source of wake-up event that generates a wake-up
request.
Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Convert to use threaded IRQ.
Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Use bitfiled instead of hardcoded values to set KBD_CTRL, use BIT macro,
remove unused defines.
Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.
Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@
- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
e = devm_ioremap_resource(e1, res);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.
Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@
- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
e = devm_ioremap_resource(e1, res);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add power management ops for qt1070, it may be a wakeup source.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add CONFIG_PM_SLEEP to suspend/resume functions to fix the build
warnings when CONFIG_PM_SLEEP is not selected. This is because
sleep PM callbacks defined by SET_SYSTEM_SLEEP_PM_OPS are only used
when the CONFIG_PM_SLEEP is enabled.
drivers/input/keyboard/max7359_keypad.c:275:12: warning: 'max7359_suspend' defined but not used [-Wunused-function]
drivers/input/keyboard/max7359_keypad.c:287:12: warning: 'max7359_resume' defined but not used [-Wunused-function]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull second round of input updates from Dmitry Torokhov:
"An update to Elantech driver to support hardware v7, fix to the new
cyttsp4 driver to use proper addressing, ads7846 device tree support
and nspire-keypad got a small cleanup."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: nspire-keypad - replace magic offset with define
Input: elantech - fix for newer hardware versions (v7)
Input: cyttsp4 - use 16bit address for I2C/SPI communication
Input: ads7846 - add device tree bindings
Input: ads7846 - make sure we do not change platform data
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Bring in second round of updates for 3.11.
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Signed-off-by: Daniel Tang <dt.tangr@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
"First round of updates for the input subsystem.
You will get a new touchsreen driver for Cypress 4th generation
devices, a driver for a special controller implementing PS/2 protocol
in OLPC devices, and a driver for power key for SiRFprimaII PWRC.
HID and bcm5497 now support for the 2013 MacBook Air.
EVIOCGKEY and the rest of evdev ioctls now flush events of matching
type from the client's event queue so that clients can be sure any
events received after issuing EVIOCG* ioctl are new events.
And a host of cleanups and improvements in other drivers"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (87 commits)
Input: cyttsp4 - kfree xfer_buf on error path in probe()
Input: tps6507x-ts - select INPUT_POLLDEV
Input: bcm5974 - add support for the 2013 MacBook Air
HID: apple: Add support for the 2013 Macbook Air
Input: cyttsp4 - leak on error path in probe()
Input: cyttsp4 - silence NULL dereference warning
Input: cyttsp4 - silence shift wrap warning
Input: tps6507x-ts - convert to polled input device infrastructure
ARM: davinci: da850-evm: remove vref from touchscreen platform data
Input: cyttsp4 - SPI driver for Cypress TMA4XX touchscreen devices
Input: cyttsp4 - I2C driver for Cypress TMA4XX touchscreen devices
Input: cyttsp4 - add core driver for Cypress TMA4XX touchscreen devices
Input: cyttsp - I2C driver split into two modules
Input: add OLPC AP-SP driver
Input: nspire-keypad - remove redundant dev_err call in nspire_keypad_probe()
Input: tps6507x-ts - remove vref from platform data
Input: tps6507x-ts - use bool for booleans
Input: tps6507x-ts - remove bogus unreachable code
Input: samsung-keypad - let device core setup the default pin configuration
Input: wacom_i2c - implement hovering capability
...
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull "exotic" arch fixes from Geert Uytterhoeven:
"This is a collection of several exotic architecture fixes, and a few
other fixes for issues that were detected while doing the former"
* 'exotic-arch-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (35 commits)
lib: Move fonts from drivers/video/console/ to lib/fonts/
console/font: Refactor font support code selection logic
Revert "staging/solo6x10: depend on CONFIG_FONTS"
input: cros_ec_keyb_clear_keyboard() depends on CONFIG_PM_SLEEP
score: Wire up asm-generic/xor.h
score: Remove unneeded <asm/dma-mapping.h>
openrisc: Wire up asm-generic/xor.h
h8300/boot: Use POSIX "$((..))" instead of bashism "$[...]"
h8300: Mark H83002 and H83048 CPU support broken
h8300: Switch h8300 to drivers/Kconfig
h8300: Limit timer channel ranges in Kconfig
h8300: Wire up asm-generic/xor.h
h8300: Fill the system call table using a CALL() macro
h8300: Fix <asm/tlb.h>
h8300: Hardcode symbol prefixes in asm sources
h8300: add missing definition for read_barries_depends()
frv: head.S - Remove commented-out initialization code
cris: Wire up asm-generic/vga.h
parport: disable PC-style parallel port support on cris
console: Disable VGA text console support on cris
...
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Prepare first set of updates for 3.11 merge window.
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There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Pull in changes from Henrik: "a trivial MT documentation fix".
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With device core now able to setup the default pin configuration,
the pin configuration code based on the deprecated Samsung specific
gpio bindings is removed.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem updates from Dmitry Torokhov:
"A few small fixups for cyttsp, wacom and xpad drivers"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - fix for "Mad Catz Street Fighter IV FightPad" controllers
Input: wacom - add a new stylus (0x100802) for Intuos5 and Cintiqs
Input: add missing dependencies on CONFIG_HAS_IOMEM
Input: cyttsp - fix swapped mfg_stat and mfg_cmd registers
Input: cyttsp - add missing handshake
Input: cyttsp - fix memcpy size param
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If CONFIG_PM_SLEEP is not set:
drivers/input/keyboard/cros_ec_keyb.c:211: warning: ‘cros_ec_keyb_clear_keyboard’ defined but not used
Move the definition of cros_ec_keyb_clear_keyboard() inside the section
protected by #ifdef CONFIG_PM_SLEEP to fix this.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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It should not be changed by the driver, so let's make it const pointer.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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pxa27x-keypad includes matrix keys. Make use of matrix_keymap
for the matrix keys.
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Several drivers don't build on s390 with CONFIG_PCI disabled as
they require MMIO functions.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable@vger.kernel.org # 3.9
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This is a driver for the keypads found on the TI-Nspire series calculators.
Signed-off-by: Daniel Tang <dt.tangr@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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free_irq() expects the same pointer that was passed to request_irq(),
otherwise the IRQ is not freed.
The issue was found using the following coccinelle script:
<smpl>
@r1@
type T;
T devid;
@@
request_irq(..., devid)
@r2@
type r1.T;
T devid;
position p;
@@
free_irq@p(..., devid)
@@
position p != r2.p;
@@
*free_irq@p(...)
</smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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free_irq() expects the same pointer that was passed to
request_threaded_irq(), otherwise the IRQ is not freed.
The issue was found using the following coccinelle script:
<smpl>
@r1@
type T;
T devid;
@@
request_threaded_irq(..., devid)
@r2@
type r1.T;
T devid;
position p;
@@
free_irq@p(..., devid)
@@
position p != r2.p;
@@
*free_irq@p(...)
</smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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free_irq() expects the same pointer that was passed to request_irq(),
otherwise the IRQ is not freed.
The issue was found using the following coccinelle script:
<smpl>
@r1@
type T;
T devid;
@@
request_irq(..., devid)
@r2@
type r1.T;
T devid;
position p;
@@
free_irq@p(..., devid)
@@
position p != r2.p;
@@
*free_irq@p(...)
</smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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free_irq() expects the same pointer that was passed to request_irq(),
otherwise the IRQ is not freed.
The issue was found using the following coccinelle script:
<smpl>
@r1@
type T;
T devid;
@@
request_irq(..., devid)
@r2@
type r1.T;
T devid;
position p;
@@
free_irq@p(..., devid)
@@
position p != r2.p;
@@
*free_irq@p(...)
</smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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