- 21 Jan, 2013 13 commits
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Bjørn Mork authored
commit 99beb2e9 upstream. The driver description files gives these names to the vendor specific functions on this modem: Diagnostics VID_2357&PID_0201&MI_00 NMEA VID_2357&PID_0201&MI_01 Modem VID_2357&PID_0201&MI_03 Networkcard VID_2357&PID_0201&MI_04 Reported-by:
Thomas Schäfer <tschaefer@t-online.de> Signed-off-by:
Bjørn Mork <bjorn@mork.no> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Frediano Ziglio authored
commit 9174adbe upstream. This fixes CVE-2013-0190 / XSA-40 There has been an error on the xen_failsafe_callback path for failed iret, which causes the stack pointer to be wrong when entering the iret_exc error path. This can result in the kernel crashing. In the classic kernel case, the relevant code looked a little like: popl %eax # Error code from hypervisor jz 5f addl $16,%esp jmp iret_exc # Hypervisor said iret fault 5: addl $16,%esp # Hypervisor said segment selector fault Here, there are two identical addls on either option of a branch which appears to have been optimised by hoisting it above the jz, and converting it to an lea, which leaves the flags register unaffected. In the PVOPS case, the code looks like: popl_cfi %eax # Error from the hypervisor lea 16(%esp),%esp # Add $16 before choosing fault path CFI_ADJUST_CFA_OFFSET -16 jz 5f addl $16,%esp # Incorrectly adjust %esp again jmp iret_exc It is possible unprivileged userspace applications to cause this behaviour, for example by loading an LDT code selector, then changing the code selector to be not-present. At this point, there is a race condition where it is possible for the hypervisor to return back to userspace from an interrupt, fault on its own iret, and inject a failsafe_callback into the kernel. This bug has been present since the introduction of Xen PVOPS support in commit 5ead97c8 (xen: Core Xen implementation), in 2.6.23. Signed-off-by:
Frediano Ziglio <frediano.ziglio@citrix.com> Signed-off-by:
Andrew Cooper <andrew.cooper3@citrix.com> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by:
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Julius Werner authored
commit 68e5254a upstream. xhci_alloc_segments_for_ring() builds a list of xhci_segments and links the tail to head at the end (forming a ring). When it bails out for OOM reasons half-way through, it tries to destroy its half-built list with xhci_free_segments_for_ring(), even though it is not a ring yet. This causes a null-pointer dereference upon hitting the last element. Furthermore, one of its callers (xhci_ring_alloc()) mistakenly believes the output parameters to be valid upon this kind of OOM failure, and calls xhci_ring_free() on them. Since the (incomplete) list/ring should already be destroyed in that case, this would lead to a use after free. This patch fixes those issues by having xhci_alloc_segments_for_ring() destroy its half-built, non-circular list manually and destroying the invalid struct xhci_ring in xhci_ring_alloc() with a plain kfree(). This patch should be backported to kernels as old as 2.6.31, that contains the commit 0ebbab37 "USB: xhci: Ring allocation and initialization." A separate patch will need to be developed for kernels older than 3.4, since the ring allocation code was refactored in that kernel. Signed-off-by:
Julius Werner <jwerner@chromium.org> Signed-off-by:
Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
CAI Qian <caiqian@redhat.com> Signed-off-by:
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Philipp Reisner authored
commit 72585d24 upstream. Without this, iostat frequently sees bogus svctime and >= 100% "utilization". Signed-off-by:
Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by:
Lars Ellenberg <lars.ellenberg@linbit.com> Cc: Raoul Bhatia <raoul@bhatia.at> Signed-off-by:
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Tom Mingarelli authored
commit ea2447f7 upstream. This patch is to prevent non-USB devices that have RMRRs associated with them from being placed into the SI Domain during init. This fixes the issue where the RMRR info for devices being placed in and out of the SI Domain gets lost. Signed-off-by:
Thomas Mingarelli <thomas.mingarelli@hp.com> Tested-by:
Shuah Khan <shuah.khan@hp.com> Reviewed-by:
Donald Dutile <ddutile@redhat.com> Reviewed-by:
Alex Williamson <alex.williamson@redhat.com> Signed-off-by:
Joerg Roedel <joro@8bytes.org> Signed-off-by:
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Alan Stern authored
commit 36caff5d upstream. This patch (as1631) fixes a bug that shows up when a config change fails for a device under an xHCI controller. The controller needs to be told to disable the endpoints that have been enabled for the new config. The existing code does this, but before storing the information about which endpoints were enabled! As a result, any second attempt to install the new config is doomed to fail because xhci-hcd will refuse to enable an endpoint that is already enabled. The patch optimistically initializes the new endpoints' device structures before asking the device to switch to the new config. If the request fails then the endpoint information is already stored, so we can use usb_hcd_alloc_bandwidth() to disable the endpoints with no trouble. The rest of the error path is slightly more complex now; we have to disable the new interfaces and call put_device() rather than simply deallocating them. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Reported-and-tested-by:
Matthias Schniedermeyer <ms@citd.de> CC: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by:
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Shuah Khan authored
[not upstream as the code involved was removed in the 3.3.0 release] Fix wii_memory_fixups() the following compile error on 3.0.y tree with wii_defconfig on 3.0.y tree. CC arch/powerpc/platforms/embedded6xx/wii.o arch/powerpc/platforms/embedded6xx/wii.c: In function ‘wii_memory_fixups’: arch/powerpc/platforms/embedded6xx/wii.c:88:2: error: format ‘%llx’ expects argument of type ‘long long unsigned int’, but argument 2 has type ‘phys_addr_t’ [-Werror=format] arch/powerpc/platforms/embedded6xx/wii.c:88:2: error: format ‘%llx’ expects argument of type ‘long long unsigned int’, but argument 3 has type ‘phys_addr_t’ [-Werror=format] arch/powerpc/platforms/embedded6xx/wii.c:90:2: error: format ‘%llx’ expects argument of type ‘long long unsigned int’, but argument 2 has type ‘phys_addr_t’ [-Werror=format] arch/powerpc/platforms/embedded6xx/wii.c:90:2: error: format ‘%llx’ expects argument of type ‘long long unsigned int’, but argument 3 has type ‘phys_addr_t’ [-Werror=format] cc1: all warnings being treated as errors make[2]: *** [arch/powerpc/platforms/embedded6xx/wii.o] Error 1 make[1]: *** [arch/powerpc/platforms/embedded6xx] Error 2 make: *** [arch/powerpc/platforms] Error 2 Signed-off-by:
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Eric Sandeen authored
commit 66bea92c upstream. ext4_da_block_invalidatepages is missing a pagevec_init(), which means that pvec->cold contains random garbage. This affects whether the page goes to the front or back of the LRU when ->cold makes it to free_hot_cold_page() Reviewed-by:
Lukas Czerner <lczerner@redhat.com> Reviewed-by:
Carlos Maiolino <cmaiolino@redhat.com> Signed-off-by:
Eric Sandeen <sandeen@redhat.com> Signed-off-by:
"Theodore Ts'o" <tytso@mit.edu> Signed-off-by:
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Jesse Barnes authored
commit a9acc536 upstream. SNB graphics devices have a bug that prevent them from accessing certain memory ranges, namely anything below 1M and in the pages listed in the table. So reserve those at boot if set detect a SNB gfx device on the CPU to avoid GPU hangs. Stephane Marchesin had a similar patch to the page allocator awhile back, but rather than reserving pages up front, it leaked them at allocation time. [ hpa: made a number of stylistic changes, marked arrays as static const, and made less verbose; use "memblock=debug" for full verbosity. ] Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by:
H. Peter Anvin <hpa@linux.intel.com> Cc: CAI Qian <caiqian@redhat.com> Signed-off-by:
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Heiko Carstens authored
commit ed4f2094 upstream. Converting a 64 Bit TOD format value to nanoseconds means that the value must be divided by 4.096. In order to achieve that we multiply with 125 and divide by 512. When used within sched_clock() this triggers an overflow after appr. 417 days. Resulting in a sched_clock() return value that is much smaller than previously and therefore may cause all sort of weird things in subsystems that rely on a monotonic sched_clock() behaviour. To fix this implement a tod_to_ns() helper function which converts TOD values without overflow and call this function from both places that open coded the conversion: sched_clock() and kvm_s390_handle_wait(). Reviewed-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
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Mark Rustad authored
commit edec8dfe upstream. Clear the target role when no target is provided for the node performing a PRLI. Signed-off-by:
Mark Rustad <mark.d.rustad@intel.com> Reviewed-by:
Bhanu Prakash Gollapudi <bprakash@broadcom.com> Acked by Robert Love <robert.w.love@intel.com> Signed-off-by:
Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by:
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Mark Rustad authored
commit f2eeba21 upstream. When generating a PRLI response to an initiator, clear the FCP_SPPF_RETRY bit in the response. Signed-off-by:
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Thomas Schwinge authored
commit 4a71997a upstream. Ensure that the aux table is properly initialized, even when optional features are missing. Without this, the FDPIC loader did not work. This was meant to be included in commit d5ab7803. Signed-off-by:
Thomas Schwinge <thomas@codesourcery.com> Signed-off-by:
Paul Mundt <lethal@linux-sh.org> Signed-off-by:
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- 17 Jan, 2013 27 commits
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Greg Kroah-Hartman authored
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Ian Abbott authored
commit 34ffb33e upstream. The 'ni_at_a2150' module links to `cfc_write_to_buffer` in the 'comedi_fc' module, so selecting 'COMEDI_NI_AT_A2150' in the kernel config needs to also select 'COMEDI_FC'. Signed-off-by:
Ian Abbott <abbotti@mev.co.uk> Signed-off-by:
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Ian Abbott authored
commit c43435d7 upstream. comedi_auto_config() associates a Comedi minor device number with an auto-configured hardware device and comedi_auto_unconfig() disassociates it. Currently, these use the hardware device's private data pointer to point to some allocated storage holding the minor device number. This is a bit of a waste of the hardware device's private data pointer, preventing it from being used for something more useful by the low-level comedi device drivers. For example, it would make more sense if comedi_usb_auto_config() was passed a pointer to the struct usb_interface instead of the struct usb_device, but this cannot be done currently because the low-level comedi drivers already use the private data pointer in the struct usb_interface for something more useful. This patch stops the comedi core hijacking the hardware device's private data pointer. Instead, comedi_auto_config() stores a pointer to the hardware device's struct device in the struct comedi_device_file_info associated with the minor device number, and comedi_auto_unconfig() calls new function comedi_find_board_minor() to recover the minor device number associated with the hardware device. Signed-off-by:
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Daniel Vetter authored
commit 48e85834 upstream. This reverts commit 9756fe38. The bogus lvds output is actually a lvds->hdmi bridge, which we don't really support. But unconditionally disabling it breaks some existing setups. Reported-by:
John Tapsell <johnflux@gmail.com> References: http://permalink.gmane.org/gmane.comp.freedesktop.xorg.drivers.intel/17237Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Luis Henriques <luis.henriques@canonical.com> Signed-off-by:
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Alexander Graf authored
commit e43a0287 upstream. When remembering the direction of a DCR transaction, we should write to the same variable that we interpret on later when doing vcpu_run again. Signed-off-by:
Alexander Graf <agraf@suse.de> Signed-off-by:
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Woodhouse, David authored
commit 6491d4d0 upstream. The dma_pte_free_pagetable() function will only free a page table page if it is asked to free the *entire* 2MiB range that it covers. So if a page table page was used for one or more small mappings, it's likely to end up still present in the page tables... but with no valid PTEs. This was fine when we'd only be repopulating it with 4KiB PTEs anyway but the same virtual address range can end up being reused for a *large-page* mapping. And in that case were were trying to insert the large page into the second-level page table, and getting a complaint from the sanity check in __domain_mapping() because there was already a corresponding entry. This was *relatively* harmless; it led to a memory leak of the old page table page, but no other ill-effects. Fix it by calling dma_pte_clear_range (hopefully redundant) and dma_pte_free_pagetable() before setting up the new large page. Signed-off-by:
David Woodhouse <David.Woodhouse@intel.com> Tested-by:
Ravi Murty <Ravi.Murty@intel.com> Tested-by:
Sudeep Dutt <sudeep.dutt@intel.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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Benjamin Marzinski authored
commit 96e5d1d3 upstream. In gfs2_trans_add_bh(), gfs2 was testing if a there was a bd attached to the buffer without having the gfs2_log_lock held. It was then assuming it would stay attached for the rest of the function. However, without either the log lock being held of the buffer locked, __gfs2_ail_flush() could detach bd at any time. This patch moves the locking before the test. If there isn't a bd already attached, gfs2 can safely allocate one and attach it before locking. There is no way that the newly allocated bd could be on the ail list, and thus no way for __gfs2_ail_flush() to detach it. Signed-off-by:
Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by:
Steven Whitehouse <swhiteho@redhat.com> [bwh: Backported to 3.2: adjust context] Signed-off-by:
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Sarah Sharp authored
commit 55c1945e upstream. A high speed control or bulk endpoint may have bInterval set to zero, which means it does not NAK. If bInterval is non-zero, it means the endpoint NAKs at a rate of 2^(bInterval - 1). The xHCI code to compute the NAK interval does not handle the special case of zero properly. The current code unconditionally subtracts one from bInterval and uses it as an exponent. This causes a very large bInterval to be used, and warning messages like these will be printed: usb 1-1: ep 0x1 - rounding interval to 32768 microframes, ep desc says 0 microframes This may cause the xHCI host hardware to reject the Configure Endpoint command, which means the HS device will be unusable under xHCI ports. This patch should be backported to kernels as old as 2.6.31, that contain commit dfa49c4a "USB: xhci - fix math in xhci_get_endpoint_interval()". Reported-by:
Vincent Pelletier <plr.vincent@gmail.com> Suggested-by:
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Oliver Neukum authored
commit 07e72b95 upstream. Some touchscreens have buggy firmware which claims remote wakeup to be enabled after a reset. They nevertheless crash if the feature is cleared by the host. Add a check for reset resume before checking for an enabled remote wakeup feature. On compliant devices the feature must be cleared after a reset anyway. Signed-off-by:
Oliver Neukum <oneukum@suse.de> Acked-by:
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Sarah Sharp authored
commit 77c7f072 upstream. John's NEC 0.96 xHCI host controller needs a longer timeout for a warm reset to complete. The logs show it takes 650ms to complete the warm reset, so extend the hub reset timeout to 800ms to be on the safe side. This commit should be backported to kernels as old as 3.2, that contain the commit 75d7cf72 "usbcore: refine warm reset logic". Signed-off-by:
John Covici <covici@ccs.covici.com> Signed-off-by:
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Sebastian Andrzej Siewior authored
commit 1d16638e upstream. If we do have endpoints named like "ep-a" then bEndpointAddress is counted internally by the gadget framework. If we do have endpoints named like "ep-1" then bEndpointAddress is assigned from the digit after "ep-". If we do have both, then it is likely that after we used up the "generic" endpoints we will use the digits and thus assign one bEndpointAddress to multiple endpoints. This theory can be proofed by using the completely enabled g_multi. Without this patch, the mass storage won't enumerate and times out because it shares endpoints with RNDIS. This patch also adds fills up the endpoints list so we have in total endpoints 1 to 15 in + out available while some of them are restricted to certain types like BULK or ISO. Without this change the nokia gadget won't load because the system does not provide enough (BULK) endpoints but it did before ep-a - ep-f were removed. Signed-off-by:
Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by:
Felipe Balbi <balbi@ti.com> Signed-off-by:
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Denis N Ladin authored
commit 036915a7 upstream. Adding support "PSC Scanning, Magellan 800i" in cdc-acm Very simple, but very necessary. Suitable for all versions of the kernel > 2.6 Signed-off-by:
Denis N Ladin <denladin@gmail.com> Acked-by:
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Tomasz Mloduchowski authored
commit 8cf65dc3 upstream. Simple fix to add support for Crucible Technologies COMET Caller ID USB decoder - a device containing FTDI USB/Serial converter chip, handling 1200bps CallerID messages decoded from the phone line - adding correct USB PID is sufficient. Tested to apply cleanly and work flawlessly against 3.6.9, 3.7.0-rc8 and 3.8.0-rc3 on both amd64 and x86 arches. Signed-off-by:
Tomasz Mloduchowski <q@qdot.me> Signed-off-by:
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Bjørn Mork authored
commit 5ec00854 upstream. also known as Alcatel One Touch L100V LTE The driver description files gives these names to the vendor specific functions on this modem: Application1: VID_1BBB&PID_011E&MI_00 Application2: VID_1BBB&PID_011E&MI_01 Modem: VID_1BBB&PID_011E&MI_03 Ethernet: VID_1BBB&PID_011E&MI_04 Reported-by:
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Quentin.Li authored
commit 94a85b63 upstream. In option.c, add some new MEDIATEK PIDs support for MEDIATEK new products. This is a MEDIATEK inc. release patch. Signed-off-by:
Quentin.Li <snowmanli88@163.com> Signed-off-by:
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Bjørn Mork authored
commit fab38246 upstream. The driver description files gives these names to the vendor specific functions on this modem: diag: VID_19D2&PID_0284&MI_00 nmea: VID_19D2&PID_0284&MI_01 at: VID_19D2&PID_0284&MI_02 mdm: VID_19D2&PID_0284&MI_03 net: VID_19D2&PID_0284&MI_04 Signed-off-by:
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Dzianis Kahanovich authored
commit ad86e586 upstream. Hyundai Petatel Inc. Nexpring NP10T terminal (EV-DO rev.A USB modem) ID Signed-off-by:
Denis Kaganovich <mahatma@eu.by> Signed-off-by:
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Johannes Berg authored
commit a56f992c upstream. This is a very old bug, but there's nothing that prevents the timer from running while the module is being removed when we only do del_timer() instead of del_timer_sync(). The timer should normally not be running at this point, but it's not clearly impossible (or we could just remove this.) Tested-by:
Ben Greear <greearb@candelatech.com> Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
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Jerome Glisse authored
commit 51861d4e upstream. Those rn50 chip are often connected to console remoting hw and load detection often fails with those. Just don't try to load detect and report connect. Signed-off-by:
Jerome Glisse <jglisse@redhat.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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Samuel Thibault authored
commit 6102c48b upstream. Check that array index is in-bounds before accessing the synths[] array. Signed-off-by:
Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: Nickolai Zeldovich <nickolai@csail.mit.edu> Signed-off-by:
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Nickolai Zeldovich authored
commit ae428655 upstream. Check that array index is in-bounds before accessing the synths[] array. Signed-off-by:
Nickolai Zeldovich <nickolai@csail.mit.edu> Cc: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by:
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Larry Finger authored
commit da849a92 upstream. The ISY IWL 1000 USB WLAN stick with USB ID 050d:11f1 is a clone of the Belkin F7D1101 V1 device. Reported-by:
Thomas Hartmann <hartmann@ict.tuwien.ac.at> Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Cc: Thomas Hartmann <hartmann@ict.tuwien.ac.at> Signed-off-by:
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Ian Abbott authored
commit c0729eee upstream. Éric Piel reported a kernel oops in the "comedi_test" module. It was a NULL pointer dereference within `waveform_ai_interrupt()` (actually a timer function) that sometimes occurred when a running asynchronous command is cancelled (either by the `COMEDI_CANCEL` ioctl or by closing the device file). This seems to be a race between the caller of `waveform_ai_cancel()` which on return from that function goes and tears down the running command, and the timer function which uses the command. In particular, `async->cmd.chanlist` gets freed (and the pointer set to NULL) by `do_become_nonbusy()` in "comedi_fops.c" but a previously scheduled `waveform_ai_interrupt()` timer function will dereference that pointer regardless, leading to the oops. Fix it by replacing the `del_timer()` call in `waveform_ai_cancel()` with `del_timer_sync()`. Signed-off-by:
Éric Piel <piel@delmic.com> Signed-off-by:
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Ian Abbott authored
commit 7d3135af upstream. When a low-level comedi driver auto-configures a device, a `struct comedi_dev_file_info` is allocated (as well as a `struct comedi_device`) by `comedi_alloc_board_minor()`. A pointer to the hardware `struct device` is stored as a cookie in the `struct comedi_dev_file_info`. When the low-level comedi driver auto-unconfigures the device, `comedi_auto_unconfig()` uses the cookie to find the `struct comedi_dev_file_info` so it can detach the comedi device from the driver, clean it up and free it. A problem arises if the user manually unconfigures and reconfigures the comedi device using the `COMEDI_DEVCONFIG` ioctl so that is no longer associated with the original hardware device. The problem is that the cookie is not cleared, so that a call to `comedi_auto_unconfig()` from the low-level driver will still find it, detach it, clean it up and free it. Stop this problem occurring by always clearing the `hardware_device` cookie in the `struct comedi_dev_file_info` whenever the `COMEDI_DEVCONFIG` ioctl call is successful. Signed-off-by:
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Mike Dunn authored
commit 41b645c8 upstream. Cold reset on the pxa27x currently fails and pxa2xx_ac97_try_cold_reset: cold reset timeout (GSR=0x44) appears in the kernel log. Through trial-and-error (the pxa270 developer's manual is mostly incoherent on the topic of ac97 reset), I got cold reset to complete by setting the WARM_RST bit in the GCR register (and later noticed that pxa3xx does this for cold reset as well). Also, a timeout loop is needed to wait for the reset to complete. Tested on a palm treo 680 machine. Signed-off-by:
Mike Dunn <mikedunn@newsguy.com> Acked-by:
Igor Grinberg <grinberg@compulab.co.il> Signed-off-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by:
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Mark Brown authored
commit 267f8fa2 upstream. Signed-off-by:
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Eric Wong authored
commit 128dd175 upstream. EPOLL_CTL_MOD sets the interest mask before calling f_op->poll() to ensure events are not missed. Since the modifications to the interest mask are not protected by the same lock as ep_poll_callback, we need to ensure the change is visible to other CPUs calling ep_poll_callback. We also need to ensure f_op->poll() has an up-to-date view of past events which occured before we modified the interest mask. So this barrier also pairs with the barrier in wq_has_sleeper(). This should guarantee either ep_poll_callback or f_op->poll() (or both) will notice the readiness of a recently-ready/modified item. This issue was encountered by Andreas Voellmy and Junchang(Jason) Wang in: http://thread.gmane.org/gmane.linux.kernel/1408782/Signed-off-by:
Eric Wong <normalperson@yhbt.net> Cc: Hans Verkuil <hans.verkuil@cisco.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Davide Libenzi <davidel@xmailserver.org> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andreas Voellmy <andreas.voellmy@yale.edu> Tested-by:
"Junchang(Jason) Wang" <junchang.wang@yale.edu> Cc: netdev@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org Signed-off-by:
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