During suspend, the device will be moved to FULLSLEEP state.
As btcoex is never been stopped, the btcoex timer is running
and tries to access hw on fullsleep state. Fix that.
Cc: stable@vger.kernel.org
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This return holds the number of bytes transfered (1 byte) or a negative
error code. The type should be int instead of u8.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Do not leak memory by updating pointer with potentially NULL realloc return value.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
commit b74713d04e
"ath9k: Handle fatal interrupts properly" introduced a race condition, where
IRQs are being left enabled, however the irq handler returns IRQ_HANDLED
while the reset is still queued without addressing the IRQ cause.
This leads to an IRQ storm that prevents the system from even getting to
the reset code.
Fix this by disabling IRQs in the handler without touching intr_ref_cnt.
Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Cc: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
There's a bug that causes the rate scaling to get stuck
when it has to use single-stream rates with a peer that
can do GF and SGI; the two are incompatible so we can't
use them together, but that causes the algorithm to not
work at all, it always rejects updates.
Disable greenfield for now to prevent that problem.
Cc: stable@vger.kernel.org
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Tested-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
We can not pass NULL libconf->conf->channel to rt61pci_config() as it
is dereferenced unconditionally in rt61pci_config_lna_gain() subroutine.
Resolves:
https://bugzilla.kernel.org/show_bug.cgi?id=44361
Cc: stable@vger.kernel.org
Reported-and-tested-by: <dolohow@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
libertas currently calls cfg80211_disconnected() when it is being
brought down. This causes an event to be allocated, but since the
wdev is already removed from the rdev by the time that the event
processing work executes, the event is never processed or freed.
http://article.gmane.org/gmane.linux.kernel.wireless.general/95666
Fix this leak, and other possible situations, by processing the event
queue when a device is being unregistered. Thanks to Johannes Berg for
the suggestion.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Cc: stable@vger.kernel.org
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
If l2cap_chan_create() fails then it will return from l2cap_sock_kill
since zapped flag of sk is reset.
Signed-off-by: Jaganath Kanakkassery <jaganath.k@samsung.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
smp_chan_create might return NULL so we need to check before
dereferencing smp.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
When the name of the given entry is empty , the state needs to be
updated accordingly.
Cc: stable@vger.kernel.org
Signed-off-by: Ram Malovany <ramm@ti.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
If the device was not found in a list of found devices names of which
are pending.This may happen in a case when HCI Remote Name Request
was sent as a part of incoming connection establishment procedure.
Hence there is no need to continue resolving a next name as it will
be done upon receiving another Remote Name Request Complete Event.
This will fix a kernel crash when trying to use this entry to resolve
the next name.
Cc: stable@vger.kernel.org
Signed-off-by: Ram Malovany <ramm@ti.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
If entry wasn't found in the hci_inquiry_cache_lookup_resolve do not
resolve the name.This will fix a kernel crash when trying to use NULL
pointer.
Cc: stable@vger.kernel.org
Signed-off-by: Ram Malovany <ramm@ti.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
AR1111 is same as AR9485. The h/w
difference between them is quite insignificant,
Felix suggests only very few baseband features
may not be available in AR1111. The h/w code for
AR9485 is already present, so AR1111 should
work fine with the addition of its PID/VID.
Cc: stable@vger.kernel.org [2.6.39+]
Cc: Felix Bitterli <felixb@qca.qualcomm.com>
Reported-by: Tim Bentley <Tim.Bentley@Gmail.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Tested-by: Tim Bentley <Tim.Bentley@Gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
brcmsmac cannot call freq_reg_info() during channel changes as it does
not hold cfg80211_lock, and as a result it generates a lockdep warning.
freq_reg_info() is being used to determine whether OFDM is allowed on
the current channel, so we can avoid the errant call by using the new
IEEE80211_CHAN_NO_OFDM for this purpose instead.
Reported-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The if_sdio_card structure was never being freed, and neither
was the command structure used for association.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch is going to fix the resuming failed from S3/S4
for rt3290 chip.
Signed-off-by: Woody Hung <Woody.Hung@mediatek.com>
Cc: Kevin Chou <kevin.chou@mediatek.com>
Signed-off-by: Chen, Chien-Chia <machen@suse.com>
Reviewed-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
On an OLPC XO-1.5 we have seen the following situation:
- the system starts going into suspend
- no wake params are set, so the mmc layer removes the card
- during remove, we send a command to the card
- that command fails, causing if_sdio's reset method to try and remove
the mmc card in attempt to reset it
- the mmc layer is not happy about being asked to remove a card that
it is already removing, and the kernel crashes
While the MMC layer could possibly be taught to behave better here,
it also seems sensible for libertas not to try and reset a card if
we're in the process of removing it anyway.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Restore the default state to the "beacon_found" flag when
the channel flags are restored. Otherwise, we can end up
with a channel that we can no longer transmit on even when
we can see beacons on that channel.
Signed-off-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently the only way for wireless drivers to tell whether or not OFDM
is allowed on the current channel is to check the regulatory
information. However, this requires hodling cfg80211_mutex, which is not
visible to the drivers.
Other regulatory restrictions are provided as flags in the channel
definition, so let's do similarly with OFDM. This patch adds a new flag,
IEEE80211_CHAN_NO_OFDM, to tell drivers that OFDM on a channel is not
allowed. This flag is set on any channels for which regulatory indicates
that OFDM is prohibited.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Tested-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In bnx2x_mcast_enqueue_cmd() we'll leak the memory allocated to
'new_cmd' if we hit the deafault case of the 'switch (cmd)'.
Add a 'kfree(new_cmd)' to that case to avoid the leak.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After SA is setup, one timer is armed to detect soft/hard expiration,
however the timer handler uses xtime to do the math. This makes hard
expiration occurs first before soft expiration after setting new date
with big interval. As a result new child SA is deleted before rekeying
the new one.
Signed-off-by: Fan Du <fdu@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cache the device gso_max_segs in sock::sk_gso_max_segs and use it to
limit the size of TSO skbs. This avoids the need to fall back to
software GSO for local TCP senders.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently an skb requiring TSO may not fit within a minimum-size TX
queue. The TX queue selected for the skb may stall and trigger the TX
watchdog repeatedly (since the problem skb will be retried after the
TX reset). This issue is designated as CVE-2012-3412.
Set the maximum number of TSO segments for our devices to 100. This
should make no difference to behaviour unless the actual MSS is less
than about 700. Increase the minimum TX queue size accordingly to
allow for 2 worst-case skbs, so that there will definitely be space
to add an skb after we wake a queue.
To avoid invalidating existing configurations, change
efx_ethtool_set_ringparam() to fix up values that are too small rather
than returning -EINVAL.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A peer (or local user) may cause TCP to use a nominal MSS of as little
as 88 (actual MSS of 76 with timestamps). Given that we have a
sufficiently prodigious local sender and the peer ACKs quickly enough,
it is nevertheless possible to grow the window for such a connection
to the point that we will try to send just under 64K at once. This
results in a single skb that expands to 861 segments.
In some drivers with TSO support, such an skb will require hundreds of
DMA descriptors; a substantial fraction of a TX ring or even more than
a full ring. The TX queue selected for the skb may stall and trigger
the TX watchdog repeatedly (since the problem skb will be retried
after the TX reset). This particularly affects sfc, for which the
issue is designated as CVE-2012-3412.
Therefore:
1. Add the field net_device::gso_max_segs holding the device-specific
limit.
2. In netif_skb_features(), if the number of segments is too high then
mask out GSO features to force fall back to software GSO.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull MIPS updates from Ralf Baechle:
"The lion share of this pull request are fixes for clk-related breakage
caused by other changes during this merge window. For some platforms
the fix was as simple as selecting HAVE_CLK, for others like the
Loongson 2 significant restructuring was required.
The remainder are changes required to get the Lantiq code to work
again."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Loongson 2: Sort out clock managment.
MIPS: Loongson 1: more clk support and add select HAVE_CLK
MIPS: txx9: Fix redefinition of clk_* by adding select HAVE_CLK
MIPS: BCM63xx: Fix redefinition of clk_* by adding select HAVE_CLK
MIPS: AR7: Fix redefinition of clk_* by adding select HAVE_CLK
MIPS: Lantiq: Platform specific CLK fixup
MIPS: Lantiq: Add device_tree_init function
MIPS: Lantiq: Fix interface clock and PCI control register offset
Pull UML fixes from Richard Weinberger:
"This patch set contains mostly fixes and cleanups. The UML tty driver
uses now tty_port and is no longer broken like hell :-)"
* 'for-linus-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: Add arch/x86/um to MAINTAINERS
um: pass siginfo to guest process
um: fix ubd_file_size for read-only files
um: pull interrupt_end() into userspace()
um: split syscall_trace(), pass pt_regs to it
um: switch UPT_SET_RETURN_VALUE and regs_return_value to pt_regs
um: set BLK_CGROUP=y in defconfig
um: remove count_lock
um: fully use tty_port
um: Remove dead code
um: remove line_ioctl()
TTY: um/line, use tty from tty_port
TTY: um/line, add tty_port
Pull ARM DMA engine updates from Russell King:
"This looks scary at first glance, but what it is is:
- a rework of the sa11x0 DMA engine driver merged during the previous
cycle, to extract a common set of helper functions for DMA engine
implementations.
- conversion of amba-pl08x.c to use these helper functions.
- addition of OMAP DMA engine driver (using these helper functions),
and conversion of some of the OMAP DMA users to use DMA engine.
Nothing in the helper functions is ARM specific, so I hope that other
implementations can consolidate some of their code by making use of
these helpers.
This has been sitting in linux-next most of the merge cycle, and has
been tested by several OMAP folk. I've tested it on sa11x0 platforms,
and given it my best shot on my broken platforms which have the
amba-pl08x controller.
The last point is the addition to feature-removal-schedule.txt, which
will have a merge conflict. Between myself and TI, we're planning to
remove the old TI DMA implementation next year."
Fix up trivial add/add conflicts in Documentation/feature-removal-schedule.txt
and drivers/dma/{Kconfig,Makefile}
* 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm: (53 commits)
ARM: 7481/1: OMAP2+: omap2plus_defconfig: enable OMAP DMA engine
ARM: 7464/1: mmc: omap_hsmmc: ensure probe returns error if DMA channel request fails
Add feature removal of old OMAP private DMA implementation
mtd: omap2: remove private DMA API implementation
mtd: omap2: add DMA engine support
spi: omap2-mcspi: remove private DMA API implementation
spi: omap2-mcspi: add DMA engine support
ARM: omap: remove mmc platform data dma_mask and initialization
mmc: omap: remove private DMA API implementation
mmc: omap: add DMA engine support
mmc: omap_hsmmc: remove private DMA API implementation
mmc: omap_hsmmc: add DMA engine support
dmaengine: omap: add support for cyclic DMA
dmaengine: omap: add support for setting fi
dmaengine: omap: add support for returning residue in tx_state method
dmaengine: add OMAP DMA engine driver
dmaengine: sa11x0-dma: add cyclic DMA support
dmaengine: sa11x0-dma: fix DMA residue support
dmaengine: PL08x: ensure all descriptors are freed when channel is released
dmaengine: PL08x: get rid of write only pool_ctr and free_txd locking
...
Pull ARM audit/signal updates from Russell King:
"ARM audit/signal handling updates from Al and Will. This improves on
the work Viro did last merge window, and sorts out some of the issues
found with that work."
* 'audit' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7475/1: sys_trace: allow all syscall arguments to be updated via ptrace
ARM: 7474/1: get rid of TIF_SYSCALL_RESTARTSYS
ARM: 7473/1: deal with handlerless restarts without leaving the kernel
ARM: 7472/1: pull all work_pending logics into C function
ARM: 7471/1: Revert "7442/1: Revert "remove unused restart trampoline""
ARM: 7470/1: Revert "7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK""
Pull ARM fixes from Russell King:
"This fixes various issues found during July"
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7479/1: mm: avoid NULL dereference when flushing gate_vma with VIVT caches
ARM: Fix undefined instruction exception handling
ARM: 7480/1: only call smp_send_stop() on SMP
ARM: 7478/1: errata: extend workaround for erratum #720789
ARM: 7477/1: vfp: Always save VFP state in vfp_pm_suspend on UP
ARM: 7476/1: vfp: only clear vfp state for current cpu in vfp_pm_suspend
ARM: 7468/1: ftrace: Trace function entry before updating index
ARM: 7467/1: mutex: use generic xchg-based implementation for ARMv6+
ARM: 7466/1: disable interrupt before spinning endlessly
ARM: 7465/1: Handle >4GB memory sizes in device tree and mem=size@start option
UML guest processes now get correct siginfo_t for SIGTRAP, SIGFPE,
SIGILL and SIGBUS. Specifically, si_addr and si_code are now correct
where previously they were si_addr = NULL and si_code = 128.
Signed-off-by: Martin Pärtel <martin.partel@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Made ubd_file_size not request write access. Fixes use of read-only images.
Signed-off-by: Martin Pärtel <martin.partel@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
The mesh path timer needs to be canceled when
leaving the mesh as otherwise it could fire
after the interface has been removed already.
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There's a corner case that can happen when we
suspend with a timer running, then resume and
disconnect. If we connect again, suspend and
resume we might start timers that shouldn't be
running. Reset the timer flags to avoid this.
This affects both mesh and managed modes.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
It includes:
- large updates for OMAP
- support for LCD3 overlay manager (omap5)
- omapdss output cleanup
- removal of passive matrix LCD support as there are no drivers for
such panels for DSS or DSS2 and nobody complained (cleanup)
- large updates for SH Mobile
- overlay support
- separating MERAM (cache) from framebuffer driver
- some updates for Exynos and da8xx-fb
- various other small patches
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Merge tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6
Pull fbdev updates from Florian Tobias Schandinat:
- large updates for OMAP
- support for LCD3 overlay manager (omap5)
- omapdss output cleanup
- removal of passive matrix LCD support as there are no drivers for
such panels for DSS or DSS2 and nobody complained (cleanup)
- large updates for SH Mobile
- overlay support
- separating MERAM (cache) from framebuffer driver
- some updates for Exynos and da8xx-fb
- various other small patches
* tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6: (78 commits)
da8xx-fb: fix compile issue due to missing include
fbdev: Make pixel_to_pat() failure mode more friendly
da8xx-fb: do not turn ON LCD backlight unless LCDC is enabled
fbdev: sh_mobile_lcdc: Fix vertical panning step
video: exynos mipi dsi: Fix mipi dsi regulators handling issue
video: da8xx-fb: do clock reset of revision 2 LCDC before enabling
arm: da850: configure LCDC fifo threshold
video: da8xx-fb: configure FIFO threshold to reduce underflow errors
video: da8xx-fb: fix flicker due to 1 frame delay in updated frame
video: da8xx-fb rev2: fix disabling of palette completion interrupt
da8xx-fb: add missing FB_BLANK operations
video: exynos_dp: use usleep_range instead of delay
video: exynos_dp: check the only INTERLANE_ALIGN_DONE bit during Link Training
fb: epson1355fb: Fix section mismatch
video: exynos_dp: fix wrong DPCD address during Link Training
video/smscufx: fix line counting in fb_write
aty128fb: Fix coding style issues
fbdev: sh_mobile_lcdc: Fix pan offset computation in YUV mode
fbdev: sh_mobile_lcdc: Fix overlay registers update during pan operation
fbdev: sh_mobile_lcdc: Support horizontal panning
...
A collection of small fixes that have been found recently.
Most of the commits are regression fixes in HD-audio and some other
random drivers.
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Merge tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes that have been found recently. Most of
the commits are regression fixes in HD-audio and some other random
drivers."
* tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: snd-usb: fix clock source validity index
ALSA: hda - Fix mute-LED GPIO initialization for IDT codecs
ALSA: hda - Add descriptions for missing IDT 92HD83x models
ALSA: hda - Fix polarity of mute LED on HP Mini 210
ALSA: es1688 - freeup resources on init failure
ALSA: hda - Workaround for silent output on VAIO Z with ALC889
ALSA: hda - Fix WARNING from HDMI/DP parser
ALSA: hda - Detach from converter at closing in patch_hdmi.c
ALSA: hda - Fix mute-LED GPIO setup for HP Mini 210
ALSA: mpu401: Fix missing initialization of irq field
ALSA: hda - Fix invalid D3 of headphone DAC on VT202x codecs
Pull second vfs pile from Al Viro:
"The stuff in there: fsfreeze deadlock fixes by Jan (essentially, the
deadlock reproduced by xfstests 068), symlink and hardlink restriction
patches, plus assorted cleanups and fixes.
Note that another fsfreeze deadlock (emergency thaw one) is *not*
dealt with - the series by Fernando conflicts a lot with Jan's, breaks
userland ABI (FIFREEZE semantics gets changed) and trades the deadlock
for massive vfsmount leak; this is going to be handled next cycle.
There probably will be another pull request, but that stuff won't be
in it."
Fix up trivial conflicts due to unrelated changes next to each other in
drivers/{staging/gdm72xx/usb_boot.c, usb/gadget/storage_common.c}
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (54 commits)
delousing target_core_file a bit
Documentation: Correct s_umount state for freeze_fs/unfreeze_fs
fs: Remove old freezing mechanism
ext2: Implement freezing
btrfs: Convert to new freezing mechanism
nilfs2: Convert to new freezing mechanism
ntfs: Convert to new freezing mechanism
fuse: Convert to new freezing mechanism
gfs2: Convert to new freezing mechanism
ocfs2: Convert to new freezing mechanism
xfs: Convert to new freezing code
ext4: Convert to new freezing mechanism
fs: Protect write paths by sb_start_write - sb_end_write
fs: Skip atime update on frozen filesystem
fs: Add freezing handling to mnt_want_write() / mnt_drop_write()
fs: Improve filesystem freezing handling
switch the protection of percpu_counter list to spinlock
nfsd: Push mnt_want_write() outside of i_mutex
btrfs: Push mnt_want_write() outside of i_mutex
fat: Push mnt_want_write() outside of i_mutex
...
For unexplainable reasons the Loongson 2 clock API was implemented in a
module so fixing this involved shifting large amounts of code around.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
