- 05 10月, 2010 1 次提交
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由 Stefano Stabellini 提交于
Register_xenstore_notifier should guarantee that the caller gets notified even if xenstore is already up. Therefore we revert "do not notify callers from register_xenstore_notifier" and set xenstored_read at the right time for PV on HVM guests too. In fact in case of PV on HVM guests xenstored is ready only after the platform pci driver has completed the initialization, so do not set xenstored_ready before the call to xenbus_probe(). This patch fixes a shutdown_event watcher registration bug that causes "xm shutdown" not to work properly. Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: NJeremy Fitzhardinge <jeremy@goop.org>
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- 03 10月, 2010 7 次提交
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由 Chris Wilson 提交于
... and do the same for pread. Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
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由 Chris Wilson 提交于
Move the access control up from the fast paths, which are no longer universally taken first, up into the caller. This then duplicates some sanity checking along the slow paths, but is much simpler. Tracked as CVE-2010-2962. Reported-by: NKees Cook <kees@ubuntu.com> Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
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由 Giel van Schijndel 提交于
Sleep while acquiring a resource lock on the Super I/O port. This should prevent collisions from causing the hardware probe to fail with -EBUSY. Signed-off-by: NGiel van Schijndel <me@mortis.eu> Acked-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NGuenter Roeck <guenter.roeck@ericsson.com>
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由 Keith Packard 提交于
Instead of waiting for the display line value to settle, we can simply wait for the pipe configuration register 'state' bit to turn off. Contrarywise, disabling the plane will not cause the display line value to stop changing, so instead we wait for the vblank interrupt bit to get set. And, we only do this when we're not about to wait for the pipe to turn off. Signed-off-by: NKeith Packard <keithp@keithp.com> Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
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由 Keith Packard 提交于
While the display port is in training mode, vblank interrupts don't occur. Because we have to wait for the display port output to turn on before starting the training sequence, enable the output in 'normal' mode so that we can tell when a vblank has occurred, then start the training sequence. Signed-off-by: NKeith Packard <keithp@keithp.com> Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
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由 Sinan Akman 提交于
This patch adds the OF hook to the spi core so that devices can automatically be registered based on device tree data. This fixes a problem with spi devices not binding to drivers after the cleanup of the spi & i2c binding code. Signed-off-by: NSinan Akman <sinan@writeme.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Roel Kluin 提交于
The SPI_MASTER_NO_TX bit (can't do buffer write) wasn't tested. This code was introduced in commit 3c8e1a84 (spi/spi-gpio: add support for controllers without MISO or MOSI pin). This patch fixes a bug in choosing which transfer ops to use. Signed-off-by: NRoel Kluin <roel.kluin@gmail.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 02 10月, 2010 7 次提交
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由 Julia Lawall 提交于
Extend the error handling code with operations found in other nearby error handling code A simplified version of the sematic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ @r@ statement S1,S2,S3; constant C1,C2,C3; @@ *if (...) {... S1 return -C1;} ... *if (...) {... when != S1 return -C2;} ... *if (...) {... S1 return -C3;} // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
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由 Axel Lin 提交于
The SYNC bits are BIT6 and BIT7 of MAX8649_SYNC register. pdata->extclk_freq could be [0|1|2]. (MAX8649_EXTCLK_26MHZ|MAX8649_EXTCLK_13MHZ|MAX8649_EXTCLK_19MHZ) It requires to left shift 6 bits to properly set extclk_freq. Signed-off-by: NAxel Lin <axel.lin@gmail.com> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NLiam Girdwood <lrg@slimlogic.co.uk>
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由 Cyril Chemparathy 提交于
This patch fixes a typo that incorrectly reports mA numbers as uA. Signed-off-by: NCyril Chemparathy <cyril@ti.com> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NLiam Girdwood <lrg@slimlogic.co.uk>
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由 Vasiliy Kulikov 提交于
If device_register() fails then call put_device(). See comment to device_register. Signed-off-by: NVasiliy Kulikov <segooon@gmail.com> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NLiam Girdwood <lrg@slimlogic.co.uk>
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由 Marcin Slusarz 提交于
Array of udimm sysfs attributes was not ended with NULL marker, leading to dereference of random memory. EDAC DEBUG: edac_create_mci_instance_attributes: edac_create_mci_instance_attributes() file udimm0 EDAC DEBUG: edac_create_mci_instance_attributes: edac_create_mci_instance_attributes() file udimm1 EDAC DEBUG: edac_create_mci_instance_attributes: edac_create_mci_instance_attributes() file udimm2 BUG: unable to handle kernel NULL pointer dereference at 00000000000001a4 IP: [<ffffffff81330b36>] edac_create_mci_instance_attributes+0x148/0x1f1 Pid: 1, comm: swapper Not tainted 2.6.36-rc3-nv+ #483 P6T SE/System Product Name RIP: 0010:[<ffffffff81330b36>] [<ffffffff81330b36>] edac_create_mci_instance_attributes+0x148/0x1f1 (...) Call Trace: [<ffffffff81330b86>] edac_create_mci_instance_attributes+0x198/0x1f1 [<ffffffff81330c9a>] edac_create_sysfs_mci_device+0xbb/0x2b2 [<ffffffff8132f533>] edac_mc_add_mc+0x46b/0x557 [<ffffffff81428901>] i7core_probe+0xccf/0xec0 RIP [<ffffffff81330b36>] edac_create_mci_instance_attributes+0x148/0x1f1 ---[ end trace 20de320855b81d78 ]--- Kernel panic - not syncing: Attempted to kill init! Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: NDoug Thompson <dougthompson@xmission.com> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrew Morton 提交于
sparc64 allmodconfig: drivers/serial/mrst_max3110.c: In function `serial_m3110_startup': drivers/serial/mrst_max3110.c:470: error: `IRQ_TYPE_EDGE_FALLING' undeclared (first use in this function) Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrew Morton 提交于
alpha allmodconfig: drivers/serial/mfd.c:144: error: implicit declaration of function 'kzalloc' drivers/serial/mfd.c:144: warning: assignment makes pointer from integer without a cast Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 01 10月, 2010 10 次提交
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由 Thomas Hellstrom 提交于
If the soon-to-be scanout buffer is partly covering the intended VRAM region, move and pin will fail. In that case, just move it out to system before attempting to move it in again. Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Thomas Hellstrom 提交于
The removed code causes oopses with newer drms on master drop. Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Thomas Hellstrom 提交于
This is to avoid accessing uninitialized data during drm_irq_uninstall and vblank ioctls. At the same time, enable error check from drm_kms_init which previously appeared to ignore all errors. Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Thomas Hellstrom 提交于
We add an option not to enable fbdev, this option is off (0) by default. Not enabling fbdev at load time makes it possible to co-operate with vga16fb and vga text mode when VT switching. However, if 3D resources are active when VT switching, we're currently not able to switch over to vga, due to device limitations. This fixes a bug where we previously lost 3D state during VT switch. Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Thomas Hellstrom 提交于
drm/vmwgfx: Fix breakage introduced by commit "drm: block userspace under allocating buffer and having drivers overwrite it (v2)" The mentioned commit breaks the vmwgfx ioctl argument sanity check. Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Chris Wilson 提交于
In order to be fully threadsafe we need to check that the drm_gem_object refcount is still 0 after acquiring the mutex in order to call the free function. Otherwise, we may encounter scenarios like: Thread A: Thread B: drm_gem_close unreference_unlocked kref_put mutex_lock ... i915_gem_evict ... kref_get -> BUG ... i915_gem_unbind ... kref_put ... i915_gem_object_free ... mutex_unlock mutex_lock i915_gem_object_free -> BUG i915_gem_object_unbind kfree mutex_unlock Note that no driver is currently using the free_unlocked vfunc and it is scheduled for removal, hasten that process. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=30454Reported-and-Tested-by: NMagnus Kessler <Magnus.Kessler@gmx.net> Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Chris Wilson 提交于
Now that we hold onto a reference whilst evicting objects, we need to be sure that we drop all the references taken -- even on the error paths. Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
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由 Suresh Siddha 提交于
Avoid TLB flush IPIs for the cores in deeper c-states by voluntary leave_mm() before entering into that state. CPUs tend to flush TLB in those c-states anyways. acpi_idle does this with C3-type states, but it was not caried over when intel_idle was introduced. intel_idle can apply it to C-states in addition to those that ACPI might export as C3... Signed-off-by: NSuresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Dave Airlie 提交于
There were lots of places being inconsistent since handle count looked like a kref but it really wasn't. Fix this my just making handle count an atomic on the object, and have it increase the normal object kref. Now i915/radeon/nouveau drivers can drop the normal reference on userspace object creation, and have the handle hold it. This patch fixes a memory leak or corruption on unload, because the driver had no way of knowing if a handle had been actually added for this object, and the fbcon object needed to know this to clean itself up properly. Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 MyungJoo Ham 提交于
S3C2440 style I2C controller uses PCLK to calculate the SDA line delay. The driver wrongly assumed that this delay is calculated from the frequency that the controller is operating on. This patch fixes this issue. Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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- 30 9月, 2010 15 次提交
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由 Grant Likely 提交于
Commit 959e85f7, "i2c: add OF-style registration and binding" caused a module dependency loop where of_i2c.c calls functions in i2c-core, and i2c-core calls of_i2c_register_devices() in of_i2c. This means that when i2c support is built as a module when CONFIG_OF is set, then neither i2c_core nor of_i2c are able to be loaded. This patch fixes the problem by moving the of_i2c_register_devices() calls back into the device drivers. Device drivers already specifically request the core code to parse the device tree for devices anyway by setting the of_node pointer, so it isn't a big deal to also call the registration function. The drivers just become slightly more verbose. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Rajendra Nayak 提交于
For devices which are not adapted to runtime PM a call to pm_runtime_suspended always returns true. Hence the pm_runtime_suspended checks below prevent legacy suspend from getting called. So do a pm_runtime_suspended check only for devices with a dev_pm_ops populated (which hence do not rely on the legacy suspend.) Signed-off-by: NRajendra Nayak <rnayak@ti.com> Acked-by: NRafael J. Wysocki <rjw@sisk.pl> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Yegor Yefremov 提交于
ret is still -1, if during the polling read_byte() returns at once with I2C_PCA_CON_SI set. So ret > 0 would lead *_waitforcompletion() to return 0, in spite of the proper behavior. The routine was rewritten, so that ret has always a proper value, before returning. Signed-off-by: NYegor Yefremov <yegorslists@googlemail.com> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de> Cc: stable@kernel.org Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Vishwanath BS 提交于
In current i2c core driver, call to pm_runtime_set_active from i2c_device_pm_resume will unconditionally enable i2c module and increment child count of the parent. Because of this, in CPU Idle path, i2c does not idle, preventing Core to enter retention. Also i2c module will not be suspended upon system suspend as pm_runtime_set_suspended is not called from i2c_device_pm_suspend. This issue is fixed by removing pm_runtime_set_active call from resume path which is not necessary. This fix has been tested on OMAP4430. Signed-off-by: NPartha Basak <p-basak2@ti.com> Signed-off-by: NVishwanath BS <vishwanath.bs@ti.com> Acked-by: NRafael J. Wysocki <rjw@sisk.pl> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Wolfram Sang 提交于
A few new i2c-drivers came into the kernel which clear the clientdata-pointer on exit. This is obsolete meanwhile, so fix it and hope the word will spread. Signed-off-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Marek Szyprowski 提交于
In case of error during probe() the driver calls free_irq() function on not yet allocated irq. This patches fixes the call sequence in case of the error. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Pawel Osciak 提交于
When a driver that uses videobuf-dma-contig is used with the USERPTR memory access method a kernel oops might happen: a NULL address may be passed to dma_free_coherent(). This happens when an application calls REQBUFS and then exits without queuing any buffers. This patch fixes that bug. Signed-off-by: NPawel Osciak <p.osciak@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Brian Rogers 提交于
For some cards, ir_dev->props and ir_dev->raw are both NULL. These cards are using built-in IR decoding instead of raw, and can't easily be made to switch protocols. So upon reading /sys/class/rc/rc?/protocols on such a card, return 'builtin' as the supported and enabled protocol. Return -EINVAL on any attempts to change the protocol. And most important of all, don't crash. Signed-off-by: NBrian Rogers <brian@xyzw.org> Acked-by: NJarod Wilson <jarod@redhat.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Arnd Bergmann 提交于
The i810 and i830 device drivers may replace their file operations on an open file descriptor. My previous patch to move the BKL out of the common DRM code into these drivers only caught the default file operations, not the ones that actually end up being used. Found while trying to come up with a way to kill the BKL for good in these drivers. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Daniel J Blueman 提交于
Fix build failure from recent interface change and merge. Tested on OMAP3430. Signed-off-by: NDaniel J Blueman <daniel.blueman@gmail.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Len Brown 提交于
Our list of Toshiba Satellite models that require this workaround is growing -- so invoke the workaround for the entire product line. https://bugzilla.kernel.org/show_bug.cgi?id=14679Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Huang Ying 提交于
The src_base and dst_base fields in apei_exec_context are physical address, so they should be ioremaped before being used in ERST MOVE_DATA instruction. Reported-by: NJavier Martinez Canillas <martinez.javier@gmail.com> Reported-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NHuang Ying <ying.huang@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Luis Henriques 提交于
commit 934231de fixes an unbalanced CONFIG_ACPI_PROCFS code block during module initialisation. This patch fixes similar issue but for the module exit. Signed-off-by: NLuis Henriques <luis.henrix@gmail.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Len Brown 提交于
acpi_pad.c:432: warning: ‘num_cpus’ may be used uninitialized in this function gcc 4.4.4 was unable to notice that num_cpus is always set. Re-arrange the code to un-confuse gcc, and also make it easier for humans to read.... Signed-off-by: NLen Brown <len.browns@intel.com>
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由 Huang Ying 提交于
In ERST debug/test support patch, a dynamic allocated buffer is used. The may-failed memory allocation should be tried firstly before free the previous buffer. APEI resource management memory allocation related error path is fixed too. v2: - Fix error messages for APEI resources management Signed-off-by: NHuang Ying <ying.huang@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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