The code uses vc->vc_cols instead of vc->vc_size_row by mistake, it
will cause half of the region which is going to clear remain
uncleared.
The issue happens in background consoles, so it's hard to observe.
Frank Pan
Signed-off-by: Frank Pan <frankpzh@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The check for the TRDY flag after writing the character is not needed.
Also do a cpu_relax() inside the loop.
Pass a struct uart_port to altera_uart_console_putc, so we do not need
to get it (and dereference pointers) for every character.
Cc: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Don't take the port spinlock in uart functions where the serial core
already takes care of locking/unlocking them.
The code would actually lock up on architectures where spinlocks are
implemented (not the case on nios2 where this driver is primarily used
for now, thus this bug didn't trigger).
Also protect calling altera_uart_rx_chars/altera_uart_tx_chars in the
interrupt handler by the port spinlock.
Thanks to Ian Abbott for pointing these issues out.
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In gsm_dlci_data_kick() we call gsm_dlci_data_sweep() with the
"gsm->tx_lock" held so we can't lock it again inside
gsm_dlci_data_sweep(). I removed that lock from and added one to
gsmld_write_wakeup() instead. The sweep function is only called from
those two places.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This most likely won't cause problems on systems as people don't typically
enable GPIO RTS/CTS if they don't actually use it.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Anomaly 05000230 (over sampling of the UART STOP bit) applies only when
the peripheral is operating in UART mode. So drop the anomaly handling
when the UART is in IRDA mode.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Set the mnd counter based on uartclk. This fixes a problem
on 7x30 where the uartclk is 19.2Mhz rather than the usual
4.8Mhz.
Trout incorrectly reports uartclk to be running at 19.2Mhz
It is actually running at 4.8Mhz. For trout force mnd
counter values as if uartclk was fed by tcxo/4.
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
[dwalker@codeaurora.org: inlined, moved into header, added comments.]
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
sysfs and configfs setattr functions have error cases after the generic inode's
attributes have been changed. Fix consistency by changing the generic inode
attributes only when it is guaranteed to succeed.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There is a kfree(ue_sk) missing on the error path if
netlink_kernel_create() fails.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
lib/kobject_uevent.c:87: warning: 'kobj_bcast_filter' defined but not used
Repairs "hotplug: netns aware uevent_helper"
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1387) fixes a bug introduced during the changeover to
the runtime PM framework. When a driver doesn't support resume or
reset-resume, and consequently its interfaces need to be unbound and
rebound, we have to unbind all the interfaces before trying to rebind
any of them. Otherwise the driver's probe method for one interface
could try to claim a different interface and fail, because that other
interface hasn't been unbound yet.
This fixes Bugzilla #15788. The symptom is that some USB sound cards
don't work after hibernation.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: François Valenduc <francois.valenduc@tvcablenet.be>
Cc: stable <stable@kernel.org> [.34]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
If port is NULL, then the call to dev_err will dereference a value that is
a small offset from NULL.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
expression E,E1;
identifier f;
statement S1,S2,S3;
@@
if ((E == NULL && ...) || ...)
{
... when != if (...) S1 else S2
when != E = E1
* E->f
... when any
return ...;
}
else S3
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes the driver to allow both CONFIG_USB_EHCI_HCD_PPC_OF and
CONFIG_USB_ECHI_HCD_XILINX to be selected.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
CC: John Linn <john.linn@xilinx.com>
CC: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes resource reclaim in error path of acm_probe:
1. In the case of "out of memory (read urbs usb_alloc_urb)\n")", there
is no need to call acm_read_buffers_free(acm) here. Fix it by goto
alloc_fail6 instead of alloc_fail7.
2. In the case of "out of memory (write urbs usb_alloc_urb)",
usb_alloc_urb may fail in any iteration of the for loop. Current
implementation does not properly free allocated snd->urb. Fix it by
goto alloc_fail8 instead of alloc_fail7.
3. In the case of device_create_file(&intf->dev,&dev_attr_iCountryCodeRelDate)
fail, acm->country_codes is kfreed. As a result, device_remove_file
for dev_attr_wCountryCodes will not be executed in acm_disconnect.
Fix it by calling device_remove_file for dev_attr_wCountryCodes
before goto skip_countries.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Call set_mctrl() and clear_mctrl() according to the flow control mode
selected. This makes serial communication for FT232 connected devices
work when CRTSCTS is not set.
This fixes a regression introduced by 4175f3e31 ("tty_port: If we are
opened non blocking we still need to raise the carrier"). This patch
calls the low-level driver's dtr_rts() function which consequently sets
TIOCM_DTR | TIOCM_RTS. A later call to set_termios() without CRTSCTS in
cflags, however, does not reset these bits, and so data is not actually
sent out on the serial wire.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Johan Hovold <jhovold@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
According to the design guide, if the FIFO layout is changed, then the
FIFOs must be flushed to ensure all FIFO pointers are correct.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The shortest period SoftDisconnect can be asserted for is 3 milliseconds
according to the V210 datasheet, so ensure that we add an msleep() to
the registration code to enforce this.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some versions of the S3C HS OtG block startup with overlapping TX FIFO
information, so change the fifo_init code to ensure that known values
are set into the FIFO registers at initialisation/reset time.
This also ensures that the FIFO RAM pointers are in a known state
before use.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The s3c_hsotg driver sets usb_gadget->is_dualspeed to 1, yet it doesn't define
USB_GADGET_DUALSPEED in Kconfig. This triggers a NULL pointer dereference in
the composite driver (which is fixed in another patch).
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Enable soft disconnect bit the OTG core during initialization. Without this,
the host sees that a gadget is connected and tries to enumerate. The
soft disconnect should be enabled until the USB gadget driver is
registered with this otg driver.
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The NEC xHCI host controller firmware version can be found by putting a
vendor-specific command on the command ring and extracting the BCD
encoded-version out of the vendor-specific event TRB.
The firmware version debug line in dmesg will look like:
xhci_hcd 0000:05:00.0: NEC firmware version 30.21
(NEC merged with Renesas Technologies and became Renesas Electronics on
April 1, 2010. I have their OK to merge this vendor-specific code.)
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Satoshi Otani <satoshi.otani.xm@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
When the run bit is set in the xHCI command register, it may take a few
microseconds for the host to start running. We cannot ring any doorbells
until the host is actually running, so wait until the status register says
the host is running.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: Shinya Saito <shinya.saito.sx@renesas.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
After software resets an xHCI host controller, it must wait for the
"Controller Not Ready" (CNR) bit in the status register to be cleared.
Software is not supposed to ring any doorbells or write to any registers
except the status register until this bit is cleared.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The Blackfin code is incorrectly casting the argument to inw() to a pointer.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
ACPI: Eliminate us to pm ticks conversion in common path
ACPI: Fix the incorrect calculation about C-state idle time
ACPI: update feature-removal.txt to reflect deleted acpi=ht option
ACPI / EC / PM: Fix names of functions that block/unblock EC transactions
ACPI / EC / PM: Fix race between EC transactions and system suspend
Commit 56d1de0a21, "ath5k: clean up
filter flags setting" introduced a regression in monitor mode such
that the promisc filter flag would get lost.
Although we set the promisc flag when it changed, we did not
preserve it across subsequent calls to configure_filter. This patch
restores the original functionality.
Cc: stable@kernel.org
Bisected-by: weedy2887@gmail.com
Tested-by: weedy2887@gmail.com
Tested-by: Rick Farina <sidhayn@gmail.com>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
When building a kernel with CONFIG_PM=y but neither suspend nor
hibernate support, the compiler complains about the static functions
ath5k_pci_suspend() and ath5k_pci_resume() not being used:
drivers/net/wireless/ath/ath5k/base.c:713:12: warning: ‘ath5k_pci_suspend’ defined but not used
drivers/net/wireless/ath/ath5k/base.c:722:12: warning: ‘ath5k_pci_resume’ defined but not used
Depending on CONFIG_PM_SLEEP rather than CONFIG_PM fixes the issue.
Signed-off-by: Tobias Doerffel <tobias.doerffel@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Processing an association response could take a bit
of time while we set up the hardware etc. During that
time, the AP might already send a blockack request.
If this happens very quickly on a fairly slow machine,
we can end up processing the blockack request before
the association processing has finished. Since the
blockack processing cannot sleep right now, we also
cannot make it wait in the driver.
As a result, sometimes on slow machines the iwlagn
driver gets totally confused, and no traffic can pass
when the aggregation setup was done before the assoc
setup completed.
I'm working on a proper fix for this, which involves
queuing all blockack category action frames from a
work struct, and also allowing the ampdu_action driver
callback to sleep, which will generally clean up the
code and make things easier.
However, this is a very involved and complex change.
To fix the problem at hand in a way that can also be
backported to stable, I've come up with this patch.
Here, I simply process all aggregation action frames
from the managed interface skb queue, which means
their processing will be serialized with processing
the association response, thereby fixing the problem.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
acpi_enter_[simple|bm] routines does us to pm tick conversion on every
idle wakeup and the value is only used in /proc/acpi display. We can
store the time in us and convert it into pm ticks before printing instead and
avoid the conversion in the common path.
Signed-off-by: Venkatesh Pallipadi <venki@google.com>
Signed-off-by: Len Brown <len.brown@intel.com>
The C-state idle time is not calculated correctly, which will return the wrong
residency time in C-state. It will have the following effects:
1. The system can't choose the deeper C-state when it is idle next time.
Of course the system power is increased. E.g. On one server machine about 40W
idle power is increased.
2. The powertop shows that it will stay in C0 running state about 95% time
although the system is idle at most time.
2.6.35-rc1 regression caused-by: 2da513f582
(ACPI: Minor cleanup eliminating redundant PMTIMER_TICKS to NS conversion)
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Reported-by: Yu Zhidong <zhidong.yu@intel.com>
Tested-by: Yu Zhidong <zhidong.yu@intel.com>
Acked-by: Venkatesh Pallipadi <venki@google.com>
Signed-off-by: Len Brown <len.brown@intel.com>
If the client revokes a lease with a higher seq than what we have, keep
the mds's seq, so that it honors our release. Otherwise, we can hang
indefinitely.
Signed-off-by: Sage Weil <sage@newdream.net>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda-intel - fix wallclk variable update and condition
ALSA: asihpi - Fix uninitialized variable
ALSA: hda: Use LPIB for ASUS M2V
usb/gadget: Replace the old USB audio FU definitions in f_audio.c
ASoC: MX31ads sound support should depend on MACH_MX31ADS_WM1133_EV1
ASoC: Add missing Kconfig entry for Phytec boards
ALSA: usb-audio: export UAC2 clock selectors as mixer controls
ALSA: usb-audio: clean up find_audio_control_unit()
ALSA: usb-audio: add UAC2 sepecific Feature Unit controls
ALSA: usb-audio: unify constants from specification
ALSA: usb-audio: parse clock topology of UAC2 devices
ALSA: usb-audio: fix selector unit string index accessor
include/linux/usb/audio-v2.h: add more UAC2 details
ALSA: usb-audio: support partially write-protected UAC2 controls
ALSA: usb-audio: UAC2: clean up parsing of bmaControls
ALSA: hda: Use LPIB for another mainboard
ALSA: hda: Use mb31 quirk for an iMac model
ALSA: hda: Use LPIB for an ASUS device
blk_init_allocated_queue_node may fail and the caller _could_ retry.
Accommodate the unlikely event that blk_init_allocated_queue_node is
called on an already initialized (possibly partially) request_queue.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
On blk_init_allocated_queue_node failure, only free the request_queue if
it is wasn't previously allocated outside the block layer
(e.g. blk_init_queue_node was blk_init_allocated_queue_node caller).
This addresses an interface bug introduced by the following commit:
01effb0 block: allow initialization of previously allocated
request_queue
Otherwise the request_queue may be free'd out from underneath a caller
that is managing the request_queue directly (e.g. caller uses
blk_alloc_queue + blk_init_allocated_queue_node).
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
We need to set the long name to the name specified via, for instance,
'perf annotate --vmlinux /path/to/vmlinux', if not it will remain as
'[kernel.kallsyms]' and that will make annotate fail when passing this
as the vmlinux name in the call to objdump.
The way this is setup grew unwieldly and dso__load_vmlinux is the
function that should allocate space for the long name, with callers not
assuming that filenames should be allocated somehow by then (strdup,
dso__build_id_filename, etc).
For now this is the minimalistic patch, a proper fix for .36 will be
made.
Reported-by: Stephane Eranian <eranian@google.com>
Tested-by: Stephane Eranian <eranian@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <20100604003900.GD10469@ghostprotocols.net>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
CONFIG_SPRUCE was removed from kernel around 2.6.26; let's remove the
last remaining piece.
Signed-off-by: Christoph Egger <siccegge@cs.fau.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: implement on-demand HPA unlocking
libata: use the enlarged capacity after late HPA unlock
SCSI: implement sd_unlock_native_capacity()
libata-sff: trivial corrections to Kconfig help text
sata_nv: don't diddle with nIEN on mcp55
sata_via: magic vt6421 fix for transmission problems w/ WD drives
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched, trace: Fix sched_switch() prev_state argument
sched: Fix wake_affine() vs RT tasks
sched: Make sure timers have migrated before killing the migration_thread
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, smpboot: Fix cores per node printing on boot
x86/amd-iommu: Fall back to GART if initialization fails
x86/amd-iommu: Fix crash when request_mem_region fails
x86/mm: Remove unused DBG() macro
arch/x86/kernel: Add missing spin_unlock
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/macio: Fix probing of macio devices by using the right of match table
agp/uninorth: Fix oops caused by flushing too much
powerpc/pasemi: Update MAINTAINERS file
powerpc/cell: Fix integer constant warning
powerpc/kprobes: Remove resume_execution() in kprobes
powerpc/macio: Don't dereference pointer before null check
* 'for-linus/bugfixes' of git://xenbits.xensource.com/people/ianc/linux-2.6:
xen: avoid allocation causing potential swap activity on the resume path
xen: ensure timer tick is resumed even on CPU driving the resume
