This is a set of small bug fixes for lpfc and zfcp and a fix for a fairly
nasty bug in sg where a process which cancels I/O completes in a kernel thread
which would then try to write back to the now gone userspace and end up
writing to a random kernel address instead.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of small bug fixes for lpfc and zfcp and a fix for a
fairly nasty bug in sg where a process which cancels I/O completes in
a kernel thread which would then try to write back to the now gone
userspace and end up writing to a random kernel address instead"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] zfcp: remove access control tables interface (keep sysfs files)
[SCSI] zfcp: fix schedule-inside-lock in scsi_device list loops
[SCSI] zfcp: fix lock imbalance by reworking request queue locking
[SCSI] sg: Fix user memory corruption when SG_IO is interrupted by a signal
[SCSI] lpfc: Don't force CONFIG_GENERIC_CSUM on
This should actually be returning an ERR_PTR on error instead of NULL.
That was how it was designed and all the callers expect it.
[AV: actually, that's what "VFS: Make clone_mnt()/copy_tree()/collect_mounts()
return errors" missed - originally collect_mounts() was expected to return
NULL on failure]
Cc: <stable@vger.kernel.org> # 3.10+
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
iget_locked() returns a NULL on error, it doesn't return an ERR_PTR.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The iget_locked() function returns NULL on error and never an ERR_PTR.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
proc_readfd_common() does dir_emit_dots() twice in a row,
we need to do this only once.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
dynamic_dname() is both too much and too little for those - the
output may be well in excess of 64 bytes dynamic_dname() assumes
to be enough (thanks to ashmem feeding really long names to
shmem_file_setup()) and vsnprintf() is an overkill for those
guys.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Use __ATTR_RW() instead of __ATTR() to make it more obvious what the
type of attribute is being created.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use DEVICE_ATTR_RO() instead of a "raw" __ATTR macro, making it easier
to audit exactly what is going on with the sysfs files.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There are two bus attributes that can better be defined using
DRIVER_ATTR_WO(), so convert them to the new macro, making it easier to
audit attribute permissions.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This creates the macros DRIVER_ATTR_WO() and DEVICE_ATTR_WO() for
write-only attributes for drivers and devices.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This creates the macro __ATTR_WO() for write-only attributes, instead of
having to "open define" them.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead. This converts the platform bus code to use
the correct field.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead. This converts the workqueue bus code to use
the correct field.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead. This converts the MEI bus code to use
the correct field.
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The drv_attrs field of struct bus_type is going away soon, drv_groups
should be used instead. This converts the USB serial bus code to use
the correct field.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull libata fixes from Tejun Heo:
"This contains three commits all of which are updates for specific
devices which aren't too widespread. Pretty limited scope and nothing
too interesting or dangerous"
* 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
sata_fsl: save irqs while coalescing
libata: apply behavioral quirks to sil3826 PMP
sata, highbank: fix ordering of SGPIO signals
Pull cgroup fix from Tejun Heo:
"A late fix for cgroup.
This fixes a behavior regression visible to userland which was created
by a commit merged during -rc1. While the behavior change isn't too
likely to be noticeable, the fix is relatively low risk and we'll need
to backport it through -stable anyway if the bug gets released"
* 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: fix a regression in validating config change
After successful initialization hub->descriptor->bNbrPorts and
hub->hdev->maxchild are equal, but using hub->hdev->maxchild is
preferred because that value is explicitly used for initialization
of hub->ports[].
Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ignoring usb_hub_create_port_device() errors cause later NULL pointer
deference when uninitialized hub->ports[i] entries are dereferenced
after port memory allocation error.
Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull drm fixes from Dave Airlie:
"Ben was on holidays for a week so a few nouveau regression fixes
backed up, but they all seem necessary.
Otherwise one i915 and one gma500 fix"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
gma500: Fix SDVO turning off randomly
drm/nv04/disp: fix framebuffer pin refcounting
drm/nouveau/mc: fix race condition between constructor and request_irq()
drm/nouveau: fix reclocking on nv40
drm/nouveau/ltcg: fix allocating memory as free
drm/nouveau/ltcg: fix ltcg memory initialization after suspend
drm/nouveau/fb: fix null derefs in nv49 and nv4e init
drm/i915: Invalidate TLBs for the rings after a reset
If the hub_configure() fails after setting the hdev->maxchild
the hub->ports might be NULL or point to uninitialized kzallocated
memory causing NULL pointer dereference in hub_quiesce() during cleanup.
Now after such error the hdev->maxchild is set to 0 to avoid cleanup
of uninitialized ports.
Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 7e8d5cd93f ("USB: Add EHCI support for MX27 and MX31 based
boards") introduced code that could potentially lead to a NULL pointer
dereference on driver removal.
Fix this by checking for the value of pdata before dereferencing it.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org> # 2.6.33+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 94ae9843 (usb: phy: rename all phy drivers to phy-$name-usb.c)
renamed drivers/usb/phy/otg_fsm.h to drivers/usb/phy/phy-fsm-usb.h
but changed drivers/usb/phy/phy-fsm-usb.c to include not existing
"phy-otg-fsm.h" instead of new "phy-fsm-usb.h". This breaks building:
...
drivers/usb/phy/phy-fsm-usb.c:32:25: fatal error: phy-otg-fsm.h: No such file or directory
compilation terminated.
make[3]: *** [drivers/usb/phy/phy-fsm-usb.o] Error 1
This commit also missed to modify drivers/usb/phy/phy-fsl-usb.h
to include new "phy-fsm-usb.h" instead of "otg_fsm.h" resulting
in another build breakage:
...
In file included from drivers/usb/phy/phy-fsl-usb.c:46:0:
drivers/usb/phy/phy-fsl-usb.h:18:21: fatal error: otg_fsm.h: No such file or directory
compilation terminated.
make[3]: *** [drivers/usb/phy/phy-fsl-usb.o] Error 1
Fix both issues.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: stable <stable@vger.kernel.org> # 3.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit c1117afb85 (USB: OHCI: make ohci-pci a separate driver)
neglected to preserve the entries for the pci_suspend and pci_resume
driver callbacks. As a result, OHCI controllers don't work properly
during suspend and after hibernation.
This patch adds the missing callbacks to the driver.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Steve Cotton <steve@s.cotton.clara.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit dcd7b8bd63 ("staging: comedi: put
module _after_ detach" by myself) reversed a couple of calls in
`comedi_device_attach()` when recovering from an error returned by the
low-level driver's 'attach' handler. Unfortunately, that introduced a
NULL pointer dereference bug as `dev->driver` is NULL after the call to
`comedi_device_detach()`. We still have a pointer to the low-level
comedi driver structure in the `driv` variable, so use that instead.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: <stable@vger.kernel.org> # 3.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge networking fixes from David Miller:
1) Revert Johannes Berg's genetlink locking fix, because it causes
regressions.
Johannes and Pravin Shelar are working on fixing things properly.
2) Do not drop ipv6 ICMP messages without a redirected header option,
they are legal. From Duan Jiong.
3) Missing error return propagation in probing of via-ircc driver.
From Alexey Khoroshilov.
4) Do not clear out broadcast/multicast/unicast/WOL bits in r8169 when
initializing, from Peter Wu.
5) realtek phy driver programs wrong interrupt status bit, from
Giuseppe CAVALLARO.
6) Fix statistics regression in AF_PACKET code, from Willem de Bruijn.
7) Bridge code uses wrong bitmap length, from Toshiaki Makita.
8) SFC driver uses wrong indexes to look up MAC filters, from Ben
Hutchings.
9) Don't pass stack buffers into usb control operations in hso driver,
from Daniel Gimpelevich.
10) Multiple ipv6 fragmentation headers in one packet is illegal and
such packets should be dropped, from Hannes Frederic Sowa.
11) When TCP sockets are "repaired" as part of checkpoint/restart, the
timestamp field of SKBs need to be refreshed otherwise RTOs can be
wildly off. From Andrey Vagin.
12) Fix memcpy args (uses 'address of pointer' instead of 'pointer') in
hostp driver. From Dan Carpenter.
13) nl80211hdr_put() doesn't return an ERR_PTR, but some code believes
it does. From Dan Carpenter.
14) Fix regression in wireless SME disconnects, from Johannes Berg.
15) Don't use a stack buffer for DMA in zd1201 USB wireless driver, from
Jussi Kivilinna.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
ipv4: expose IPV4_DEVCONF
ipv6: handle Redirect ICMP Message with no Redirected Header option
be2net: fix disabling TX in be_close()
Revert "genetlink: fix family dump race"
hso: Fix stack corruption on some architectures
hso: Earlier catch of error condition
sfc: Fix lookup of default RX MAC filters when steered using ethtool
bridge: Use the correct bit length for bitmap functions in the VLAN code
packet: restore packet statistics tp_packets to include drops
net: phy: rtl8211: fix interrupt on status link change
r8169: remember WOL preferences on driver load
via-ircc: don't return zero if via_ircc_open() failed
macvtap: Ignore tap features when VNET_HDR is off
macvtap: Correctly set tap features when IFF_VNET_HDR is disabled.
macvtap: simplify usage of tap_features
tcp: set timestamps for restored skb-s
bnx2x: set VF DMAE when first function has 0 supported VFs
bnx2x: Protect against VFs' ndos when SR-IOV is disabled
bnx2x: prevent VF benign attentions
bnx2x: Consider DCBX remote error
...
Merge fixes from Andrew Morton:
"A few fixes. One is a licensing change and I don't do licensing, so
please eyeball that one"
Licensing eye-balled.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
lib/lz4: correct the LZ4 license
memcg: get rid of swapaccount leftovers
nilfs2: fix issue with counting number of bio requests for BIO_EOPNOTSUPP error detection
nilfs2: remove double bio_put() in nilfs_end_bio_write() for BIO_EOPNOTSUPP error
drivers/platform/olpc/olpc-ec.c: initialise earlier
The LZ4 code is listed as using the "BSD 2-Clause License".
Signed-off-by: Richard Laager <rlaager@wiktel.com>
Acked-by: Kyungsik Lee <kyungsik.lee@lge.com>
Cc: Chanho Min <chanho.min@lge.com>
Cc: Richard Yao <ryao@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ The 2-clause BSD can be just converted into GPL, but that's rude and
pointless, so don't do it - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The swapaccount kernel parameter without any values has been removed by
commit a2c8990aed ("memsw: remove noswapaccount kernel parameter") but
it seems that we didn't get rid of all the left overs.
Make sure that menuconfig help text and kernel-parameters.txt are clear
about value for the paramter and remove the stalled comment which is not
very much useful on its own.
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Reported-by: Gergely Risko <gergely@risko.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix the issue with improper counting number of flying bio requests for
BIO_EOPNOTSUPP error detection case.
The sb_nbio must be incremented exactly the same number of times as
complete() function was called (or will be called) because
nilfs_segbuf_wait() will call wail_for_completion() for the number of
times set to sb_nbio:
do {
wait_for_completion(&segbuf->sb_bio_event);
} while (--segbuf->sb_nbio > 0);
Two functions complete() and wait_for_completion() must be called the
same number of times for the same sb_bio_event. Otherwise,
wait_for_completion() will hang or leak.
Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Tested-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Remove double call of bio_put() in nilfs_end_bio_write() for the case of
BIO_EOPNOTSUPP error detection. The issue was found by Dan Carpenter
and he suggests first version of the fix too.
Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Tested-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Being a low-level component, various drivers (e.g. olpc-battery) assume
that it is ok to communicate with the OLPC Embedded Controller during
probe. Therefore the OLPC EC driver must be initialised before other
drivers try to use it. This was the case until it was recently moved
out of arch/x86 and restructured around commits ac2504151f ("Platform:
OLPC: turn EC driver into a platform_driver") and 85f90cf6ca ("x86:
OLPC: switch over to using new EC driver on x86").
Use arch_initcall so that olpc-ec is readied earlier, matching the
previous behaviour.
Fixes a regression introduced in Linux-3.6 where various drivers such as
olpc-battery and olpc-xo1-sci failed to load due to an inability to
communicate with the EC. The user-visible effect was a lack of battery
monitoring, missing ebook/lid switch input devices, etc.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Cc: Andres Salomon <dilinger@queued.net>
Cc: Paul Fox <pgf@laptop.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Support for multiple lines in SPI framework has been picked[1].
[1]: http://comments.gmane.org/gmane.linux.kernel.spi.devel/14420
Hence, adapting ti qspi driver to support multiple data lines for read.
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Pointers passed to ARAnyM NatFeat calls should be physical addresses,
not virtual addresses. This worked before because on Atari, physical and
virtual kernel addresses are the same, as long as normal kernel memory
is concerned.
Correct the few remaining places where virtual addresses were used.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
When running a multi-platform kernel on Atari, warning messages like
the following may be printed:
WARNING: at /root/linux-3.10.1/init/main.c:698 do_one_initcall+0x12e/0x13a()
initcall param_sysfs_init+0x0/0x1a4 returned with disabled interrupts
This is caused by the different definitions of ALLOWINT for Atari and
other platforms:
#if defined(MACH_ATARI_ONLY)
#define ALLOWINT (~0x500)
#else
#define ALLOWINT (~0x700)
#endif
On Atari, we want to disable the high-frequency HSYNC interrupt:
- On Atari-only kernels, this is handled completely through ALLOWINT,
- On multi-platform kernels, this is handled by disabling the HSYNC
interrupt from the interrupt handler.
However, as in the latter case arch_irqs_disabled_flags() didn't ignore the
disabling of the HSYNC interrupt, irqs_disabled() would detect false
positives.
Ignore the HSYNC interrupt when running on Atari to fix this.
For single-platform kernels this test is optimized away by the compiler.
Reported-by: Thorsten Glaser <tg@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Thorsten Glaser <tg@debian.org>
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
Just one patch that soaked for quite a bit to fix a resume issue,
resulting in gpu hangs (or worse) due to tlb containing garbage.
* tag 'drm-intel-fixes-2013-08-23' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: Invalidate TLBs for the rings after a reset
IP sends device configuration (see inet_fill_link_af) as an array
in the netlink information, but the indices in that array are not
exposed to userspace through any current santized header file.
It was available back in 2.6.32 (in /usr/include/linux/sysctl.h)
but was broken by:
commit 02291680ff
Author: Eric W. Biederman <ebiederm@xmission.com>
Date: Sun Feb 14 03:25:51 2010 +0000
net ipv4: Decouple ipv4 interface parameters from binary sysctl numbers
Eric was solving the sysctl problem but then the indices were re-exposed
by a later addition of devconf support for IPV4
commit 9f0f7272ac
Author: Thomas Graf <tgraf@infradead.org>
Date: Tue Nov 16 04:32:48 2010 +0000
ipv4: AF_INET link address family
Putting them in /usr/include/linux/ip.h seemed the logical match
for the DEVCONF_ definitions for IPV6 in /usr/include/linux/ip6.h
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
rfc 4861 says the Redirected Header option is optional, so
the kernel should not drop the Redirect Message that has no
Redirected Header option. In this patch, the function
ip6_redirect_no_header() is introduced to deal with that
condition.
Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
commit fba875591 ("disable TX in be_close()") disabled TX in be_close()
to protect be_xmit() from touching freed up queues in the AER recovery
flow. But, TX must be disabled *before* cleaning up TX completions in
the close() path, not after. This allows be_tx_compl_clean() to free up
all TX-req skbs that were notified to the HW.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Revert commit c04c697 (ACPI / video: Always call acpi_video_init_brightness()
on init), because it breaks eDP backlight at 1920x1080 on Acer Aspire S3
for Trevor Bortins.
References: https://bugs.freedesktop.org/show_bug.cgi?id=68355
Reported-and-bisected-by: Trevor Bortins <enabfluw@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Without the dynamic minor assignment, HDMI codec may have less PCM
instances than the number of pins, which eventually leads to Oops.
Reported-by: Stratos Karafotis <stratosk@semaphore.gr>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This reverts commit 58ad436fcf.
It turns out that the change introduced a potential deadlock
by causing a locking dependency with netlink's cb_mutex. I
can't seem to find a way to resolve this without doing major
changes to the locking, so revert this.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull x86 platform driver fixes from Matthew Garrett:
"Three trivial fixes - the first reverts a patch that's broken some
other devices (again - I'm trying to figure out a clean way to
implement this), the other two fix minor issues in the sony-laptop
driver"
* 'linux-next' of git://cavan.codon.org.uk/platform-drivers-x86:
Revert "hp-wmi: Enable hotkeys on some systems"
sony-laptop: Fix reporting of gfx_switch_status
sony-laptop: return a negative error code in sonypi_compat_init()
commit 40b313608a ("Finally eradicate
CONFIG_HOTPLUG") removed remaining references to CONFIG_HOTPLUG, but missed
a few plain English references in the CONFIG_KEXEC help texts.
Remove them, too.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
