| Commit message (Collapse) | Author | Age | Files | Lines |
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The dasd_open function uses the private_data pointer of the gendisk to
find the dasd_block structure that matches the gendisk. When a DASD
device is set offline, we set the private_data pointer of the gendisk
to NULL and later remove the dasd_block structure, but there is still
a small race window, in which dasd_open could first read a pointer
from the private_data field and then try to use it, after the structure
has already been freed.
To close this race window, we will store a pointer to the dasd_devmap
structure of the base device in the private_data field. The devmap
entries are not deleted, and we already have proper locking and
reference counting in place, so that we can safely get from a devmap
pointer to the dasd_device and dasd_block structures of the device.
Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/radeon/kms: pll tweaks for r7xx
drm/nouveau: fix allocation of notifier object
drm/nouveau: fix notifier memory corruption bug
drm/nouveau: fix pinning of notifier block
drm/nouveau: populate ttm_alloced with false, when it's not
drm/nouveau: fix nv30 pcie boards
drm/nouveau: split ramin_lock into two locks, one hardirq safe
drm/radeon/kms: adjust evergreen display watermark setup
drm/radeon/kms: add connectors even if i2c fails
drm/radeon/kms: fix bad shift in atom iio table parser
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Prefer min m to max p only on pre-r7xx asics.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=36197
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Commit 73412c3854c877e5f37ad944ee8977addde4d35a ("drm/nouveau: allocate
kernel's notifier object at end of block") intended to align end of
notifier block to page boundary, but start of block was miscalculated
to be off by -16 bytes. Fix it.
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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nouveau_bo_wr32 expects offset to be in words, but we pass value in bytes,
so after commit 73412c3854c877e5f37ad944ee8977addde4d35a ("drm/nouveau: allocate
kernel's notifier object at end of block") we started to overwrite some memory
after notifier buffer object (previously m2mf_ntfy was always 0, so it didn't
matter it was a value in bytes).
Reported-by: Dominik Brodowski <linux@dominikbrodowski.net>
Reported-by: Nigel Cunningham <lkml@nigelcunningham.com.au>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Pekka Paalanen <pq@iki.fi>
Cc: stable@kernel.org [2.6.38]
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Problem introduced with commit 6ba9a68317781537d6184d3fdb2d0f20c97da3a4
Reported-by: Bob Gleitsmann <rjgleits@bellsouth.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Caught with kmemcheck on unrelated business.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Wasn't aware they even existed, apparently they do! They're actually
AGP chips with a bridge as far as I can tell, which puts them in the
same boat as nv40/nv45.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Fixes a possible lock ordering reversal between context_switch_lock
and ramin_lock.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
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This patch fixes two issues:
- A disabled crtc does not use any lb, so return 0 for
lb size. This makes the display priority calculation
more exact.
- Only use 1/2 and whole lb partitions. Using smaller
partitions can cause underflow to one of the displays
if you have multiple large displays on the same lb.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=34534
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Sometimes the i2c test in i2c_bit_add_bus fails
if this happens we fail to register the i2c adapter and
eventually fail to add the connector. If i2c fails,
add the connector to the user can at least force
it on.
Note that some distros set i2c-algo-bit.bit_test to 1 by
default which sometimes fails preventing the ddc i2c adapter
from being added. The i2c adapter works even if the bit test
fails, probably due to pre/post_xfer not getting called in
the test_bit function. I have another patch to follow
up on that.
See:
https://bugs.freedesktop.org/show_bug.cgi?id=36221
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Noticed by Patrick Lowry.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (51 commits)
netfilter: ipset: Fix the order of listing of sets
ip6_pol_route panic: Do not allow VLAN on loopback
bnx2x: Fix port identification problem
r8169: add Realtek as maintainer.
ip: ip_options_compile() resilient to NULL skb route
bna: fix memory leak during RX path cleanup
bna: fix for clean fw re-initialization
usbnet: Fix up 'FLAG_POINTTOPOINT' and 'FLAG_MULTI_PACKET' overlaps.
iwlegacy: fix tx_power initialization
Revert "tcp: disallow bind() to reuse addr/port"
qlcnic: limit skb frags for non tso packet
net: can: mscan: fix build breakage in mpc5xxx_can
netfilter: ipset: set match and SET target fixes
netfilter: ipset: bitmap:ip,mac type requires "src" for MAC
sctp: fix oops while removed transport still using as retran path
sctp: fix oops when updating retransmit path with DEBUG on
net: Disable NETIF_F_TSO_ECN when TSO is disabled
net: Disable all TSO features when SG is disabled
sfc: Use rmb() to ensure reads occur in order
ieee802154: Remove hacked CFLAGS in net/ieee802154/Makefile
...
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Several tests in the ipv6 routing code check IFF_LOOPBACK, and
allowing stacking such as VLAN'ing on top of loopback results in a
netdevice which reports IFF_LOOPBACK but really isn't the loopback
device.
Instead of spamming the ipv6 routing code with even more special tests,
simply disallow VLAN over loopback.
The result of this patch is:
# modprobe 8021q
# vconfig add lo 43
ERROR: trying to add VLAN #43 to IF -:lo:- error: Operation not supported
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes port identification on optic devices when there's no link on the port.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The memory leak was caused by unintentional assignment of the Rx path
destroy callback function pointer to NULL just after correct
initialization.
Signed-off-by: Debashis Dutt <ddutt@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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During a kernel crash, bna control path state machine and firmware do not
get a notification and hence are not cleanly shutdown. The registers
holding driver/IOC state information are not reset back to valid
disabled/parking values. This causes subsequent driver initialization
to hang during kdump kernel boot. This patch, during the initialization
of first PCI function, resets corresponding register when unclean shutown
is detect by reading chip registers. This will make sure that ioc/fw
gets clean re-initialization.
Signed-off-by: Debashis Dutt <ddutt@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
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priv->tx_power_next is not initialized to max supported power,
but instead default value is used, what cause errors like
[ 58.597834] iwl3945 0000:03:00.0: Requested user TXPOWER 15 above upper limit 14.
[ 58.597839] iwl3945 0000:03:00.0: Error setting Tx power (-22).
if maximum tx power read from the eeprom is smaller than default.
In consequence card is unable to initialize properly. Fix the problem
and cleanup tx power initialization.
Reported-and-tested-by: Robin Dong <hao.bigrat@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Pass the correct module name and device interface so that
ethtool can display the proper values.
The firmware version will be fixed later on when the FW
can actually report a version. :)
Reported-by: Richard Farina <sidhayn@gmail.com>
Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Tested-by: Richard Farina <sidhayn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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During PHY errors, the MAC can sometimes fail to enter an idle state on older
hardware (before AR9380) after an rx stop has been requested.
This typically shows up in the kernel log with messages like these:
ath: Could not stop RX, we could be confusing the DMA engine when we start RX up
------------[ cut here ]------------
WARNING: at drivers/net/wireless/ath/ath9k/recv.c:504 ath_stoprecv+0xcc/0xf0 [ath9k]()
Call Trace:
[<8023f0e8>] dump_stack+0x8/0x34
[<80075050>] warn_slowpath_common+0x78/0xa4
[<80075094>] warn_slowpath_null+0x18/0x24
[<80d66d60>] ath_stoprecv+0xcc/0xf0 [ath9k]
[<80d642cc>] ath_set_channel+0xbc/0x270 [ath9k]
[<80d65254>] ath_radio_disable+0x4a4/0x7fc [ath9k]
When this happens, the state that the MAC enters is easy to identify and
does not result in bogus DMA traffic, however to ensure a working state
after a channel change, the hardware should still be reset.
This patch adds detection for this specific MAC state, after which the above
warnings completely disappear in my tests.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@kernel.org
Cc: Kyungwan Nam <Kyungwan.Nam@Atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Machines are getting deadlock in four node cluster environment.
All nodes are accessing (find /gfs2 -depth -print|cpio -ocv > /dev/null)
200 GB storage on a GFS2 filesystem.
This result in memory fragmentation and driver receives 18 frags for
1448 byte packets.
For non tso packet, fw drops the tx request, if it has >14 frags.
Fixing it by pulling extra frags.
Cc: stable@kernel.org
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 74888760d40b3ac9054f9c5fa07b566c0676ba2d
"dt/net: Eliminate users of of_platform_{,un}register_driver"
broke building mscan driver. Fix it.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc-2.6
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Enabling write-combining may also enable read reordering. The BIU is
only guaranteed to read from a 128-bit CSR or 64-bit SRAM word when
the host reads from its lowest address; otherwise the BIU may use the
latched value. Therefore we need to reinstate the read memory
barriers after the first read operation for each CSR or SRAM word.
Signed-off-by; Ben Hutchings <bhutchings@solarflare.com>
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During self-tests we use efx_process_channel_now() to handle
completion and other events synchronously. This disables interrupts
and NAPI processing for the channel in question, but it may still be
interrupted by another channel. A single socket may receive packets
from multiple net devices or even multiple channels of the same net
device, so this can result in deadlock on a socket lock.
Receiving packets in process context will also result in incorrect
classification by the network cgroup classifier.
Therefore, we must only use efx_process_channel_now() in the offline
loopback tests (which never deliver packets up the stack) and not for
the online interrupt and event tests.
For the interrupt test, there is no reason to process events. We
only care that an interrupt is raised.
For the event test, we want to know whether events have been received,
and there may be many events ahead of the one we inject. Therefore
remove efx_channel::magic_count and instead test whether
efx_channel::eventq_read_ptr advances. This is currently an event
queue index and might wrap around to exactly the same value, resulting
in a false negative. Therefore move the masking to efx_event() and
efx_nic_eventq_read_ack() so that it cannot wrap within the time of
the test.
The event test also tries to diagnose failures by checking whether an
event was delivered without causing an interrupt. Add and use a
helper function that only does this.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
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If the TX queues are running during loopback self tests, host
traffic gets looped back which causes the test to fail. Avoid
restarting the TX queues after the port reset so that any packets
sent by the host get held back until after the tests have completed.
[bwh: Also wake all TX queues at the end of self-tests.]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
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Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When a skb is delivered to a registered callback, cn_call_callback()
incorrectly returns -ENODEV after freeing the skb, causing cn_rx_skb()
to free the skb a second time.
Reported-by: Eric B Munson <emunson@mgebm.net>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Tested-by: Eric B Munson <emunson@mgebm.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Machines are getting deadlock in four node cluster environment.
All nodes are accessing (find /gfs2 -depth -print|cpio -ocv > /dev/null)
200 GB storage on a GFS2 filesystem.
This result in memory fragmentation and driver receives 18 frags for
1448 byte packets.
For non tso packet, fw drops the tx request, if it has >14 frags.
Fixing it by pulling extra frags.
Cc: stable@kernel.org
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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replace relpy with reply.
replace premanent with permanent.
Signed-off-by: Weiping Pan(潘卫平) <panweiping3@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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replace tranmitted with transmitted.
replace tranmitting with transmitting.
Signed-off-by: Weiping Pan(潘卫平) <panweiping3@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now, alb_bond_info uses rx_ntt,rlb_update_delay_counter and
rlb_update_retry_counter to decide when to call rlb_update_rx_clients().
Signed-off-by: Weiping Pan(潘卫平) <panweiping3@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now bonding-alb uses delayed_work instead of timer_list.
Signed-off-by: Weiping Pan(潘卫平) <panweiping3@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It is unnecessary to set save_load to 1 here,
as the tx_hashtbl is just kzalloced.
Signed-off-by: Weiping Pan(潘卫平) <panweiping3@gmail.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On some old MAC chips without COE sometime the
Transmit Underflow error is issued.
The driver aborted all the transmission process
and initialized it from scratch.
This breaks the network activity as raised by Nachiketa
on a SPEAr board.
The patch is to fix this rare underflow event.
The driver will only clear the interrupt and the Tx
DMA will go out the Suspend state as soon as the
descriptor is fetched again.
The driver will continue to bump-up the DMA FIFO threshold
that, indeed, helped somebody to prevent this kind of error
in the past as well.
Reported-by: Nachiketa Prachanda <nprachanda@ncomputing.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch reviews the open function and fixes some
errors when exit with an error state.
It also moves the request_irq after core is initialized
when interrupts are properly masked.
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes a compilation error when build the
dwmac_lib with the DEBUG option enabled.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
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Otherwise, IWLWIFI_LEGACY has to be selected independently before the
drivers are made available.
Reported-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Wey-Yi Guy <wey-yi.w.guy@intel.com>
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This patch fixes a very serious off-by-one bug in
the driver, which could leave the device in an
unresponsive state.
The problem was that the extra_len variable [used to
reserve extra scratch buffer space for the firmware]
was left uninitialized. Because p54_assign_address
later needs the value to reserve additional space,
the resulting frame could be to big for the small
device's memory window and everything would
immediately come to a grinding halt.
Reference: https://bugs.launchpad.net/bugs/722185
Cc: <stable@kernel.org>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Jason Conti <jason.conti@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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These missing chip wakeups mainly cause crashes on AR5416 cards in MIPS
boards, but have also been reported to cause radio stability issues on
AR9285.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Joe Culler reported a problem with his AR9170 device:
> ath: EEPROM regdomain: 0x5c
> ath: EEPROM indicates we should expect a direct regpair map
> ath: invalid regulatory domain/country code 0x5c
> ath: Invalid EEPROM contents
It turned out that the regdomain 'APL7_FCCA' was not mapped yet.
According to Luis R. Rodriguez [Atheros' engineer] APL7 maps to
FCC_CTL and FCCA maps to FCC_CTL as well, so the attached patch
should be correct.
Cc: <stable@kernel.org>
Reported-by: Joe Culler <joe.culler@gmail.com>
Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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When the mwl8k driver attempts and fails to switch from sta to ap
firmware (or vice-versa) in the mwl8k_add_interface routine, the
mwl8k_stop routine will be called. This routine must not attempt
to free the irq if it was not requested.
Signed-off-by: Brian Cavagnolo <brian@cozybit.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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At least EEPROM version 0x11A has the wrong
number of chains programmed into it for some
reason, so we need to override in the driver.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: pci-label: Fix build failure when CONFIG_NLS is set to 'm' by allmodconfig
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Create a kconfig option symbol for PCI_LABEL and enable it
when DMI || ACPI are enabled.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timer-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
RTC: rtc-omap: Fix a leak of the IRQ during init failure
posix clocks: Replace mutex with reader/writer semaphore
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In omap_rtc_probe error path, free_irq() was using NULL rather than the
driver data as the data pointer so free_irq() wouldn't have matched.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: "George G. Davis" <gdavis@mvista.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: rtc-linux@googlegroups.com
Link: http://lkml.kernel.org/r/%3C1303005778.2889.2.camel%40phoenix%3E
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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