- 05 Oct, 2009 40 commits
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Mark McLoughlin authored
(cherry picked from commit cb007648) If we run out of cpuid entries for extended request types we should return -E2BIG, just like we do for the standard request types. Signed-off-by:
Mark McLoughlin <markmc@redhat.com> Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Linus Torvalds authored
commit 202c4675 upstream. Commit ac89a917 ("pty: don't limit the writes to 'pty_space()' inside 'pty_write()'") removed the pty_space() checking, in order to let the regular tty buffer code limit the buffering itself. That was all good, but as a subtle side effect it meant that we'd be doing a tty_wakeup() even in the case where the buffers were all filled up, and didn't actually make any progress on the write. Which sounds innocuous, but it interacts very badly with the ppp_async code, which has an infinite loop in ppp_async_push() that tries to push out data to the tty. When we call tty_wakeup(), that loop ends up thinking that progress was made (see the subtle interactions between XMIT_WAKEUP and 'tty_stuffed' for details). End result: one unhappy ppp user. Fixed by noticing when tty_insert_flip_string() didn't actually do anything, and then not doing any more processing (including, very much not calling tty_wakeup()). Bisected-and-tested-by:
Peter Volkov <pva@gentoo.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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Arjan van de Ven authored
fixed upstream in commit b7058842 in a different way The length of the to-copy data structure is currently stored in a signed integer. However many comparisons are done with sizeof(..) which is unsigned. It's more suitable for this variable to be unsigned to make these comparisons more naturally right. Signed-off-by:
Arjan van de Ven <arjan@linux.intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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Arjan van de Ven authored
fixed upstream in commit b7058842 in a different way The ax25 code tried to use if (optlen < sizeof(int)) return -EINVAL; as a security check against optlen being negative (or zero) in the set socket option. Unfortunately, "sizeof(int)" is an unsigned property, with the result that the whole comparison is done in unsigned, letting negative values slip through. This patch changes this to if (optlen < (int)sizeof(int)) return -EINVAL; so that the comparison is done as signed, and negative values get properly caught. Signed-off-by:
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Pavel Machek authored
commit 99f329a2 upstream. sharpsl_pm.c code tries to read battery state very early during resume, but those battery meters are connected on SPI and that's only resumed way later. Replace the check with simple checking of battery fatal signal, that actually works at this stage. Signed-off-by:
Pavel Machek <pavel@ucw.cz> Tested-by:
Stanislav Brabec <utx@penguin.cz> Signed-off-by:
Eric Miao <eric.y.miao@gmail.com> Signed-off-by:
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Tejun Heo authored
commit 31b239ad upstream. Commit a5bfc471 dropped explicit pci_intx() manipulation from ahci because it seemed unnecessary and ahci doesn't seem to be the right place to be tweaking it if it were. This was largely okay but there are exceptions. There was one on an embedded platform which was fixed via firmware and now bko#14124 reports it on a HP DL320. http://bugzilla.kernel.org/show_bug.cgi?id=14124 I still think this isn't something libata drivers should be caring about (the only ones which are calling pci_intx() explicitly are libata ones and one other driver) but for now reverting the change seems to be the right thing to do. Signed-off-by:
Tejun Heo <tj@kernel.org> Reported-by:
Thomas Jarosch <thomas.jarosch@intra2net.com> Signed-off-by:
Jeff Garzik <jgarzik@redhat.com> Signed-off-by:
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Oliver Hartkopp authored
commit 481a8199 upstream. When using nanosleep() in an userspace application we get a ratelimit warning NOHZ: local_softirq_pending 08 for 10 times. The echo of CAN frames is done from process context and softirq context only. Therefore the usage of netif_rx() was wrong (for years). This patch replaces netif_rx() with netif_rx_ni() which has to be used from process/softirq context. It also adds a missing comment that can_send() must no be used from hardirq context. Signed-off-by:
Oliver Hartkopp <oliver@hartkopp.net> Signed-off-by:
Urs Thuermann <urs@isnogud.escape.de> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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J. Bruce Fields authored
commit 886e3b7f upstream. On setting up the callback to the client, we attempt to use the same authentication flavor the client did. We find an rpc cred to use by calling rpcauth_lookup_credcache(), which assumes that the given authentication flavor has a credentials cache. However, this is not required to be true--in particular, auth_null does not use one. Instead, we should call the auth's lookup_cred() method. Without this, a client attempting to mount using nfsv4 and auth_null triggers a null dereference. Signed-off-by:
J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by:
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Eric Anholt authored
commit e517a5e9 upstream. Ever since we enabled GEM, the pre-9xx chipsets (particularly 865) have had serious stability issues. Back in May a wbinvd was added to the DRM to work around much of the problem. Some failure remained -- easily visible by dragging a window around on an X -retro desktop, or by looking at bugzilla. The chipset flush was on the right track -- hitting the right amount of memory, and it appears to be the only way to flush on these chipsets, but the flush page was mapped uncached. As a result, the writes trying to clear the writeback cache ended up bypassing the cache, and not flushing anything! The wbinvd would flush out other writeback data and often cause the data we wanted to get flushed, but not always. By removing the setting of the page to UC and instead just clflushing the data we write to try to flush it, we get the desired behavior with no wbinvd. This exports clflush_cache_range(), which was laying around and happened to basically match the code I was otherwise going to copy from the DRM. Signed-off-by:
Eric Anholt <eric@anholt.net> Signed-off-by:
Brice Goglin <Brice.Goglin@ens-lyon.org> Signed-off-by:
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Zhenyu Wang authored
commit 553bd149 upstream. It seems that on IGDNG the same swizzling setup always applys. And front buffer tiling needs to set address swizzle in display arb control too. Fix plane tricle feed setting in v1 which should be disable bit, and always setup address swizzle to let hardware care for buffer tiling in all cases. Signed-off-by:
Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by:
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Keith Packard authored
commit 57cdaf90 upstream. mac Mini's have a single DDC line on the DVI connector, shared between the analog link and the digital link. So, if DDC isn't detected on GPIOE (the usual SDVO DDC link), try GPIOA (the usual VGA DDC link) when there isn't a VGA monitor connected. Signed-off-by:
Keith Packard <keithp@keithp.com> Signed-off-by:
Zhao Yakui <yakui.zhao@intel.com> Signed-off-by:
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Zhenyu Wang authored
commit 8dd81a38 upstream. Arrandale has new window based method for panel fitting. This one enables full screen aspect scaling on LVDS. It fixes standard mode display failure on LVDS for Arrandale. Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by:
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Zhenyu Wang authored
commit 730915d6 upstream. This is not required on newer stepping hardware to get reliable force detect status. Removing this fixes screen blank flicker in CRT detect on IGDNG. Signed-off-by:
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Zhenyu Wang authored
commit 339e5a4c upstream. IGDNG LVDS SSC uses 120Mhz freq. This fixes one 1600x900 LVDS panel black issue on IGDNG with SSC enabled. Signed-off-by:
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Zhenyu Wang authored
commit b09aea7f upstream. New register for PCH LVDS on IGDNG should be used. This is a copy-n-paste typo. This fixes possible dual channel LVDS panel failure on IGDNG. Signed-off-by:
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Chris Wilson authored
commit cd0b9fb4 upstream. Eric noted a potential concern with the low bits not being strictly used as part of the absolute offset (instead part of the command stream to the GPU), but in practice that should not be an issue. Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Tested-by:
Andy Whitcroft <apw@canonical.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by:
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Chris Wilson authored
commit 4960aaca upstream. If we failed to set the domain, the buffer was no longer being tracked on any list. Signed-off-by:
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Jesse Barnes authored
commit d660467c upstream. A very high dotclock (e.g. 229500kHz as reported by Anton) can cause the entries_required variable to overflow, potentially leading to a FIFO watermark value that's too low to support the given mode. Split the division across the calculation to avoid this. Reported-by:
Anton Khirnov <wyskas@gmail.com> Tested-by:
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Chris Wilson authored
commit 7e616158 upstream. drm_ht_remove_item() does not handle removing an absent item and the hlist in particular is incorrectly initialised. The easy remedy is simply skip calling i915_gem_free_mmap_offset() unless we have actually created the offset and associated ht entry. This also fixes the mishandling of a partially constructed offset which leaves pointers initialized after freeing them along the i915_gem_create_mmap_offset() error paths. In particular this should fix the oops found here: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/415357/comments/8Signed-off-by:
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Zhenyu Wang authored
commit b7e53aba upstream. Don't need extra config restore like for intel_agp, which might cause resume hang issue found by Alan on 845G. Cc: Stable Team <stable@kernel.org> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Hennerich, Michael authored
commit eb661bc8 upstream. SL811 Device detected after removal used to be working in linux-2.6.22 but then broke somewhere between 2.6.22 and 2.6.28. Current hub_port_connect_change() in drivers/usb/core/hub.c won't call usb_disconnect() in case the SL811 driver sets portstatus USB_PORT_FEAT_CONNECTION upon removal. AFAIK the SL811 has only a combined Device Insert/Remove detection bit, therefore use a count to distinguish insert or remove. Signed-Off-By:
Michael Hennerich <hennerich@blackfin.uclinux.org> Signed-off-by:
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Guus Sliepen authored
commit 665d7662 upstream. According to the specifications, an instrument should not return more data in a DEV_DEP_MSG_IN urb than requested. However, some instruments can send more than requested. This could cause the kernel to write the extra data past the end of the buffer provided by read(). Fix this by checking that the value of the TranserSize field is not larger than the urb itself and not larger than the size of the userspace buffer. Also correctly decrement the remaining size of the buffer when userspace read()s more than USBTMC_SIZE_IOBUFFER. Signed-off-by:
Guus Sliepen <guus@sliepen.org> Signed-off-by:
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fangxiaozhi authored
commit d0defb85 upstream. In this patch, we always make the return value of function usb_stor_huawei_e220_init to be zero. Then it will not prevent usb-storage driver from attaching to the CDROM device of Huawei Datacard. Signed-off-by:
fangxiaozhi <huananhu@huawei.com> Signed-off-by:
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Oliver Neukum authored
commit e5dc8ae1 upstream. In the resume path of a block driver GFP_NOIO must be used to avoid a possible deadlock. The onetouch subdriver of storage violates the requirement. Signed-off-by:
Oliver Neukum <oliver@neukum.org> Signed-off-by:
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Pawel Ludwikow authored
commit 35904e6b upstream. I'd like to present my small patch enabling to use Sanwa PC5000 mulitimeter with linux. Signed-off-by:
Pawel Ludwikow <pludwiko@rab.ict.pwr.wroc.pl> Signed-off-by:
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Jack Steiner authored
commit d2374aec upstream. The UV BIOS has changed the way interrupt remapping is being done. This affects the id used for sending IPIs. The upper id bits no longer need to be masked off. Signed-off-by:
Jack Steiner <steiner@sgi.com> LKML-Reference: <20090909154104.GA25083@sgi.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Kevin Cernekee authored
commit 051b982b upstream. kaweth_control() never frees the buffer that it allocates for the USB control message. Test case: while :; do ifconfig eth2 down ; ifconfig eth2 up ; done This is a tiny buffer so it is a slow leak. If you want to speed up the process, you can change the allocation size to e.g. 16384 bytes, and it will consume several megabytes within a few minutes. Signed-off-by:
Kevin Cernekee <cernekee@gmail.com> Acked-by:
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Tilman Schmidt authored
commit a4304f2d upstream. The tty_operation chars_in_buffer() is not allowed to return a negative value to signal an error. Corrects the problem flagged by commit 23198fda, "tty: fix chars_in_buffers". Signed-off-by:
Tilman Schmidt <tilman@imap.cc> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Alan Cox authored
commit 9a68e39d upstream. These are handled by the tty_port core code which will raise and lower the carrier correctly in tty_wait_until_ready Signed-off-by:
Alan Cox <alan@linux.intel.com> Signed-off-by:
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Alan Cox authored
commit 9b80fee1 upstream. This changed in 2006 so its about time the ACM driver caught up Signed-off-by:
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Oliver Neukum authored
commit 7af25b4b upstream. cdc-acm needs to set a flag during open to tell the tty layer that the device is initialized Signed-off-by:
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Oliver Neukum authored
commit 7f1dc313 upstream. support for O_NONBLOCK in read and write path by simply not waiting for data in read or availability of the write urb in write but returning -EAGAIN Signed-off-by:
Marcel Holtmann <marcel@holtmann.org> Signed-off-by:
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Michael Hennerich authored
commit 11eaf170 upstream. Detect the UART on interface1 and blacklist interface0 (as that is the JTAG port). Signed-off-by:
Michael Hennerich <michael.hennerich@analog.com> Signed-off-by:
Mike Frysinger <vapier@gentoo.org> Signed-off-by:
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mail@rainerkeller.de authored
commit ec3815c3 upstream. Some devices from the OpenDCC project are missing in the list of the FTDI PIDs. These PIDs are listed at http://www.opendcc.de/elektronik/usb/opendcc_usb.html (Sorry for the german only page.) This patch adds the three missing devices. Signed-off-by:
Rainer Keller <mail@rainerkeller.de> Signed-off-by:
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Pawel Ludwikow authored
commit e7d7fcc0 upstream. I'd like to present my small patch enabling to use Hameg HM8143 programmable power supply with linux. Signed-off-by:
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Massimo Cirillo authored
commit 23af51ec upstream. The M29W128G Numonyx flash devices are intolerant to any 0xFF command: in the Cfi_util.c the function cfi_qry_mode_off() (that resets the device after the autoselect mode) must have a 0xF0 command after the 0xFF command. This fix solves also the cause of the fixup_M29W128G_write_buffer() fix, that can be removed now. The following patch applies to 2.6.30 kernel. Signed-off-by:
Massimo Cirillo <maxcir@gmail.com> Acked-by:
Alexey Korolev <akorolev@infradead.org> Signed-off-by:
David Woodhouse <David.Woodhouse@intel.com> Signed-off-by:
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Benjamin Krill authored
commit ebd5a74d upstream. The previous implementation breaks the dts binding "mtd-physmap.txt". This implementation fixes the issue by checking the availability of the reg property instead of the name property. Signed-off-by:
Benjamin Krill <ben@codiert.org> Signed-off-by:
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Feng Kan authored
commit 76c23c32 upstream. Fix ECC Correction bug where the byte offset location were double fliped causing correction routine to toggle the wrong byte location in the ECC segment. The ndfc_calculate_ecc routine change the order of getting the ECC code. /* The NDFC uses Smart Media (SMC) bytes order */ ecc_code[0] = p[2]; ecc_code[1] = p[1]; ecc_code[2] = p[3]; But in the Correction algorithm when calculating the byte offset location, the b1 is used as the upper part of the address. Which again reverse the order making the final byte offset address location incorrect. byte_addr = (addressbits[b1] << 4) + addressbits[b0]; The order is change to read it in straight and let the correction function to revert it to SMC order. Signed-off-by:
Feng Kan <fkan@amcc.com> Acked-by:
Victor Gallardo <vgallardo@amcc.com> Acked-by:
Prodyut Hazarika <phazarika@amcc.com> Acked-by:
Stefan Roese <sr@denx.de> Signed-off-by:
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Christian Lamparter authored
commit fe9f6342 upstream. This patch adds the usbid for TP-Link TL-WN821N v2. Reported-by:
Fabian Lenz <lenz_fabian@yahoo.de> Signed-off-by:
Christian Lamparter <chunkeey@googlemail.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com> Signed-off-by:
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Ryusuke Konishi authored
commit 1f28fcd9 upstream. This will fix file system corruption which infrequently happens after mount. The problem was reported from users with the title "[NILFS users] Fail to mount NILFS." (Message-ID: <200908211918.34720.yuri@itinteg.net>), and so forth. I've also experienced the corruption multiple times on kernel 2.6.30 and 2.6.31. The problem turned out to be caused due to discordance between mapping->nrpages of a btree node cache and the actual number of pages hung on the cache; if the mapping->nrpages becomes zero even as it has pages, truncate_inode_pages() returns without doing anything. Usually this is harmless except it may cause page leak, but garbage collection fairly infrequently sees a stale page remained in the btree node cache of DAT (i.e. disk address translation file of nilfs), and induces the corruption. I identified a missing initialization in btree node caches was the root cause. This corrects the bug. I've tested this for kernel 2.6.30 and 2.6.31. Reported-by:
Yuri Chislov <yuri@itinteg.net> Signed-off-by:
Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by:
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