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2010-07-05omap: Enable interface clock for omap2 FS USBTony Lindgren1-0/+11
Looks like this code was only working on boards that had the usb_l4_ick enabled in the bootloader. Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05omap: Move omap2 FS USB platform init code into mach-omap2/usb-fs.cTony Lindgren8-206/+429
Move omap2 FS USB platform init code into mach-omap2/usb-fs.c. This will allow further work later on to use omap hwmod for initializing the device. Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05omap: Separate out omap2 FS USB platform init functionsTony Lindgren1-95/+157
We want to split old FS USB platform init code and stop doing pin multiplexing under plat-omap. First move 24xx specific init code into omap2_usb[012]_init functions. Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-06-30Add mdr as maintainer of qla1280 driver.Jes Sorensen1-0/+6
As discussed with Mike Reed, add him as the maintainer of the qla1280 driver as I no longer have any hardware and he is actively looking after it. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-30futex: futex_find_get_task remove credentails checkMichal Hocko1-13/+4
futex_find_get_task is currently used (through lookup_pi_state) from two contexts, futex_requeue and futex_lock_pi_atomic. None of the paths looks it needs the credentials check, though. Different (e)uids shouldn't matter at all because the only thing that is important for shared futex is the accessibility of the shared memory. The credentail check results in glibc assert failure or process hang (if glibc is compiled without assert support) for shared robust pthread mutex with priority inheritance if a process tries to lock already held lock owned by a process with a different euid: pthread_mutex_lock.c:312: __pthread_mutex_lock_full: Assertion `(-(e)) != 3 || !robust' failed. The problem is that futex_lock_pi_atomic which is called when we try to lock already held lock checks the current holder (tid is stored in the futex value) to get the PI state. It uses lookup_pi_state which in turn gets task struct from futex_find_get_task. ESRCH is returned either when the task is not found or if credentials check fails. futex_lock_pi_atomic simply returns if it gets ESRCH. glibc code, however, doesn't expect that robust lock returns with ESRCH because it should get either success or owner died. Signed-off-by: Michal Hocko <mhocko@suse.cz> Acked-by: Darren Hart <dvhltc@us.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Nick Piggin <npiggin@suse.de> Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-30USB: gadget: f_mass_storage: stale common->fsg value bug fixMichal Nazarewicz1-99/+61
On fsg_unbind the common->fsg pointer was not NULLed if the unbound fsg_dev instance was the current one. As an effect, the incorrect pointer was preserved in all further operations which caused do_set_interface to reference an invalid region. This commit fixes this by raising an exception in fsg_bind which will change the common->fsg pointer. This also requires an wait queue so that the thread in fsg_bind can wait till the worker thread handles the exception. This commit removes also a config and new_config fields of fsg_common as they are no longer needed since fsg can be used to determine whether function is active or not. Moreover, this commit removes possible race condition where the fsg field was modified in both the worker thread and form various other contexts. This is fixed by replacing prev_fsg with new_fsg. At this point, fsg is assigned only in worker thread. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: gadget: f_mass_storage: fixed fs descriptors not being updatedMichal Nazarewicz1-22/+12
The full speed descriptors were copied to the usb_function structure in the fsg_bind_config function before call to the usb_ep_autoconfig. The usb_ep_autoconfig was called in fsg_bind using the original descriptors. In effect copied descriptors were not updated. This patch changes the copy full speed descriptors after the call to usb_op_autoconfig is performed. This way, copied full speed descriptors have updated values. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Reported-by: Dries Van Puymbroeck <Dries.VanPuymbroeck@dekimo.com> Tested-by: Dries Van Puymbroeck <Dries.VanPuymbroeck@dekimo.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: musb: Enable the maximum supported burst mode for DMAHema HK1-11/+2
Setting MUSB Burst Mode 3 automatically enables support for lower burst modes (BURST4, BURST8, BURST16 or bursts of unspecified length). There is no need to set these burst modes based on the packet size. Also enable the burst mode for both mode1 and mode0. This is a fix for buggy hardware - having the lower burst modes enabled can potentially cause lockups of the DMA engine used in OMAP2/3/4 chips. Signed-off-by: Hema HK <hemahk@ti.com> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: musb: fix Blackfin ulpi stubsMike Frysinger1-2/+2
The new ulpi code defines fallback stubs for the Blackfin arch, but does so incorrectly leading to a build failure: drivers/usb/musb/musb_core.c:227: error: 'musb_ulpi_read' undeclared here (not in a function) drivers/usb/musb/musb_core.c:228: error: 'musb_ulpi_write' undeclared here (not in a function) Tweak the fallback stubs so that they do work as intended. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: MUSB: make non-OMAP platforms build with CONFIG_PM=ySergei Shtylyov1-2/+4
Attempt to build MUSB driver with CONFIG_PM=y (e.g. in the OTG mode) on DaVinci results in these link errors: drivers/built-in.o: In function `musb_restore_context': led-triggers.c:(.text+0x714d8): undefined reference to `musb_platform_restore_context' drivers/built-in.o: In function `musb_save_context': led-triggers.c:(.text+0x71788): undefined reference to `musb_platform_save_context' This turned out to be caused by commit 9957dd97ec5e98dd334f87ade1d9a0b24d1f86eb (usb: musb: Fix compile error for omaps for musb_hdrc). Revert it, taking into account the rename of CONFIG_ARCH_OMAP34XX into CONFIG_ARCH_OMAP3 (which that commit fixed in a completely inappropriate way) and the recent addition of OMAP4 support. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: musb_core: make disconnect and suspend interrupts work againSergei Shtylyov1-5/+1
Commit 1c25fda4a09e8229800979986ef399401053b46e (usb: musb: handle irqs in the order dictated by programming guide) forgot to get rid of the old 'STAGE0_MASK' filter for calling musb_stage0_irq(), so now disconnect and suspend interrupts are effectively ignored... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: stable <stable@kernel.org> Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: obey the sysfs power/wakeup settingAlan Stern1-10/+3
This patch (as1403) is a partial reversion of an earlier change (commit 5f677f1d45b2bf08085bbba7394392dfa586fa8e "USB: fix remote wakeup settings during system sleep"). After hearing from a user, I realized that remote wakeup should be enabled during system sleep whenever userspace allows it, and not only if a driver requests it too. Indeed, there could be a device with no driver, that does nothing but generate a wakeup request when the user presses a button. Such a device should be allowed to do its job. The problem fixed by the earlier patch -- device generating a wakeup request for no reason, causing system suspend to abort -- was also addressed by a later patch ("USB: don't enable remote wakeup by default", accepted but not yet merged into mainline). The device won't be able to generate the bogus wakeup requests because it will be disabled for remote wakeup by default. Hence this reversion will not re-introduce any old problems. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> [.34] Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: gadget eth: Fix calculate CRC32 in EEMJiri Pinkava1-2/+1
CRC should be calculated for Ethernet frame, not for whole recievede EEM data. This bug shows rarely, because in many times len == skb->len. Signed-off-by: Jiri Pinkava <jiri.pinkava@vscht.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: qcserial: fix a memory leak in qcprobe error pathAxel Lin1-0/+3
This patch adds missing kfree(data) before return -ENODEV. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: gadget/printer, fix sleep inside atomicJiri Slaby1-16/+16
Stanse found that sleep is called inside atomic context created by lock_printer_io spinlock in several functions. It's used in process context only and some functions sleep inside its critical section. As this is not allowed for spinlocks, switch it to mutex. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Craig W. Nadler <craig@nadler.us> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: isp1362-hcd, fix double lockJiri Slaby1-5/+10
Stanse found that isp1362_sw_reset tries to take a isp1362_hcd->lock, but it is already held in isp1362_hc_stop. Avoid that by introducing __isp1362_sw_reset which doesn't take the lock and call it from isp1362_hc_stop. isp1362_sw_reset is then as simple as lock -- __isp1362_sw_reset -- unlock. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Lothar Wassmann <LW@KARO-electronics.de> Cc: Michael Hennerich <michael.hennerich@analog.com> Cc: Bryan Wu <cooloney@kernel.org> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: serial: ftdi: correct merge conflict with CONTEC idDaniel Sangorrin2-8/+0
This patch corrects a problem with the merge of a previous patch to add the CONTEC identifier. I believe the merge problem occurred with the commit: dee5658b482e9e2ac7d6205dc876fc11d4008138 Originally I submitted a patch and then they asked me to order the IDs and resubmit, so did I. But unfortunately in the end somehow both patches were merged. Signed-off-by: Daniel Sangorrin <daniel.sangorrin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: fix oops in usb_sg_init()Alan Stern1-2/+5
This patch (as1401) fixes a bug in usb_sg_init() that can cause an invalid pointer dereference. An inner loop reuses some local variables in an unsafe manner, so new variables are introduced. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: s3c2410: deactivate endpoints before gadget unbindingVladimir Zapolskiy1-1/+5
Gadget disconnect must be called before unbinding to avoid races. The change fixes an oops on g_ether module unregistering. Signed-off-by: Vladimir Zapolskiy <vzapolskiy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: ehci-mxc: bail out on transceiver problemsWolfram Sang1-3/+10
The old code registered the hcd even if there were no transceivers detected, leading to oopses like this if we try to probe a non-existant ULPI: [ 2.730000] mxc-ehci mxc-ehci.0: unable to init transceiver [ 2.740000] timeout polling for ULPI device [ 2.740000] timeout polling for ULPI device [ 2.750000] mxc-ehci mxc-ehci.0: unable to enable vbus on transceiver [ 2.750000] mxc-ehci mxc-ehci.0: Freescale On-Chip EHCI Host Controller [ 2.760000] mxc-ehci mxc-ehci.0: new USB bus registered, assigned bus number 2 [ 2.770000] Unhandled fault: external abort on non-linefetch (0x808) at 0xc4876184 [ 2.770000] Internal error: : 808 [#1] PREEMPT [ 2.770000] last sysfs file: [ 2.770000] Modules linked in: [ 2.770000] CPU: 0 Not tainted (2.6.33.5 #5) [ 2.770000] PC is at ehci_hub_control+0x4d4/0x8f8 [ 2.770000] LR is at ehci_mxc_setup+0xbc/0xdc [ 2.770000] pc : [<c0196dfc>] lr : [<c019bc8c>] psr: 00000093 [ 2.770000] sp : c3815e40 ip : 00000001 fp : 60000013 [ 2.770000] r10: c4876184 r9 : 00000000 r8 : c3814000 [ 2.770000] r7 : c391d2cc r6 : 00000001 r5 : 00000001 r4 : 00000000 [ 2.770000] r3 : 80000000 r2 : 00000007 r1 : 80000000 r0 : c4876184 [ 2.770000] Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel [ 2.770000] Control: 0005317f Table: a0004000 DAC: 00000017 [ 2.770000] Process swapper (pid: 1, stack limit = 0xc3814270) ... Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: stable <stable@kernel.org> Acked-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: otg/ulpi: bail out on read errorsWolfram Sang1-6/+11
otg_read may return errnos, so bail out correctly to prevent bogus ID-numbers. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Daniel Mack <daniel@caiaq.de> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30usb: musb: Fix a bug by making suspend interrupt available in device modeMaulik Mankad1-1/+2
As a part of aligning the ISR code for MUSB with the specs, the ISR code was re-written. See Commit 1c25fda4a09e8229800979986ef399401053b46e (usb: musb: handle irqs in the order dictated by programming guide) With this the suspend interrupt came accidently under CONFIG_USB_MUSB_HDRC_HCD. The fix brings suspend interrupt handling outside CONFIG_USB_MUSB_HDRC_HCD. Signed-off-by: Maulik Mankad <x0082077@ti.com> Cc: David Brownell <david-b@pacbell.net> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Cc: stable <stable@kernel.org> [.34] Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: r8a66597: Fix failure in change of statusNobuhiro Iwamatsu1-1/+1
In the change by 749da5f82fe33ff68dd4aa1a5e35cd9aa6246dab, The change in the status when the USB device is connected is wrong. Therefore, the device is not recognized. Acked-by: Alan Stern <stern@rowland.harvard.edu> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Paul Mundt" <lethal@linux-sh.org> Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: xHCI: Fix bug in link TRB activation change.Sarah Sharp1-16/+46
Commit 6c12db90f19727c76990e7f4801c67a148b30111 introduced a bug for control transfers. The patch was supposed to change when the link TRBs at the end of each ring segment were given to the hardware. If a transfer descriptor (TD) ended just before the link TRB, the code wouldn't give back the link TRB to the hardware; instead it would be given back in prepare_ring() just before the next TD was enqueued at the top of the ring. Unfortunately, the code relied on checking the chain bit of the TRB to determine whether the TD ended just before the link TRB. It assumed that the ring enqueuing code would call prepare_ring() before enqueuing the next TD. However, control transfers are made of multiple TDs, and prepare_ring() is only called once before enqueuing two or three TDs. If the first or second TD of the control transfer ended just before the link TRB, then the code in inc_enq() would not move the enqueue pointer past the link TRB, and the link TRB would get overwritten. This would cause the xHCI driver to start writing to memory past the ring segment, and eventually the system would crash or hang. The fix is to add a flag to inc_enq() that says whether the caller will enqueue more TDs before calling prepare_ring(). If the chain bit is cleared (meaning this is the last TRB in a TD), and the caller will not enqueue more TDs, then we defer giving back the link TRB. 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>
2010-06-30USB: gadget: g_fs: possible invalid pointer reference bug fixedMichal Nazarewicz1-0/+11
During __gfs_do_config() some invalid pointers may be left in usb_configuration::interfaces array from previous calls to the __gfs_do_config() for the same configuration. This will always happen if an user space function which has a fewer then the last user space function registers itself. Composite's set_config() function that a pointer after the last interface in usb_configuration::interface is NULL unless the array is full. This patch makes the __gfs_do_config() make sure that if the usb_configuration::interface is not full then a pointer after the last interface is NULL. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: g_serial: fix tty cleanup on unloadJon Povey1-0/+1
Call put_tty_driver() in cleanup function, to fix Oops when trying to open gadget serial char device after module unload. Signed-off-by: Jon Povey <jon.povey@racelogic.co.uk> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30USB: g_serial: don't set low_latency flagJon Povey1-13/+2
No longer set low_latency flag as it causes this warning backtrace: WARNING: at kernel/mutex.c:207 __mutex_lock_slowpath+0x6c/0x288() Fix associated locking and wakeups. Signed-off-by: Jon Povey <jon.povey@racelogic.co.uk> Cc: Maulik Mankad <x0082077@ti.com> Cc: stable <stable@kernel.org> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-30serial: cpm_uart: implement the cpm_uart_early_write() function for console pollDongdong Deng1-64/+79
The cpm_uart_early_write() function which was used for console poll isn't implemented in the cpm uart driver. Implementing this function both fixes the build when CONFIG_CONSOLE_POLL is set and allows kgdboc to work via the cpm uart. Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com> Reviewed-by: Bruce Ashfield <bruce.ashfield@windriver.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-29fs/fcntl.c:kill_fasync_rcu() fa_lock must be IRQ-safeAndrew Morton1-2/+4
Fix a lockdep-splat-causing regression introduced by commit 989a2979205d ("fasync: RCU and fine grained locking"). kill_fasync() can be called from both process and hard-irq context, so fa_lock must be taken with IRQs disabled. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16230 Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reported-by: Dominik Brodowski <linux@dominikbrodowski.net> Tested-by: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Maciej Rutecki <maciej.rutecki@gmail.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29um: os-linux/mem.c needs sys/stat.hLiu Aleaxander1-0/+1
The os-linux/mem.c file calls fchmod function, which is declared in sys/stat.h header file, so include it. Fixes build breakage under FC13. Signed-off-by: Liu Aleaxander <Aleaxander@gmail.com> Acked-by: Boaz Harrosh <bharrosh@panasas.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29drivers/video/nuc900fb.c: fix lcd build errorWan ZongShun1-2/+0
Fix a nuc900 lcd build error. Since the 'nuc900_driver_clksrc_div()' API cannot be merged into mainline successfully, I removed this clock source selection hook in this driver. This means nuc900 lcd driver has to select default clock source from the external crystal now. Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Cc: Qiang Wang <rurality.wq@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29sysvfs: fix NULL deref. when allocating new inodeLubomir Rintel1-1/+5
A call to sysv_write_inode() in sysv_new_inode() to its new interface that replaced wait flag with writeback structure. This was broken by a9185b41a4f84971b930c519f0c63bd450c4810d ("pass writeback_control to ->write_inode"). Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: <stable@kernel.org> [2.6.34.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29drivers/gpio is platform-neutralDavid Brownell2-2/+6
Update Kconfig and Makefile in drivers/gpio to discourage inappropriate addition of platform-specific code. [akpm@linux-foundation.org: fix tpyo] Signed-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29rtc: fix ds1388 time corruptionJoakim Tjernlund1-2/+2
The ds1307 driver misreads the ds1388 registers when checking for 12 or 24 hour mode. Instead of checking the hour register it reads the minute register. Therefore the driver thinks minutes >= 40 has the 12HR bit set and resets the minute register by zeroing the high bits. This results in minutes are reset to 0-9, jumping back in time 40 or 50 minutes. The time jump is also written back to the RTC. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Paul Gortmaker <p_gortmaker@yahoo.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29MAINTAINERS: some Atmel drivers change maintainerNicolas Ferre1-5/+5
I take over the maintenance of SPI, USART, Ethernet and USB gadget drivers. Those drivers are found in Atmel microcontrollers, both AT32/AVR32 and AT91/ARM. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: Andrew Victor <avictor.za@gmail.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29MAINTAINERS: Masami Hiramatsu has movedMasami Hiramatsu1-1/+1
Masami Hiramatsu moved back to Hitachi Japan and changed his email address. Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29ipmi: set schedule_timeout_wait() value back to oneMartin Wilck1-1/+1
Fix a regression introduced by ae74e823cb7d ("ipmi: add parameter to limit CPU usage in kipmid"). Some systems were seeing CPU usage go up dramatically with the recent changes to try to reduce timer usage in the IPMI driver. This was traced down to schedule_timeout_interruptible(1) being changed to schedule_timeout_interruptbile(0). Revert that part of the change. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16147 Reported-by: Thomas Jarosch <thomas.jarosch@intra2net.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Tested-by: Thomas Jarosch <thomas.jarosch@intra2net.com> Cc: <stable@kernel.org> [2.6.34.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29mempolicy: fix dangling reference to tmpfs superblock mpolLee Schermerhorn1-4/+5
My patch to "Factor out duplicate put/frees in mpol_shared_policy_init() to a common return path"; and Dan Carpenter's fix thereto both left a dangling reference to the incoming tmpfs superblock mempolicy structure. A similar leak was introduced earlier when the nodemask was moved offstack to the scratch area despite the note in the comment block regarding the incoming ref. Move the remaining 'put of the incoming "mpol" to the common exit path to drop the reference. Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Acked-by: Dan Carpenter <error27@gmail.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29ipmi: make sure drivers were registered before unregistering themMatthew Garrett1-4/+17
The ipmi code will never register a PCI or Open Firmware driver if a hardcoded device is provided by the user by providing device addresses via the module parameters. This can cause us to attempt to unregister a driver that was never registered, resulting in an oops. Keep track of registration in order to avoid this. Fixes a post-2.6.34 regression. Signed-off-by: Matthew Garrett <mjg@redhat.com> Acked-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29kexec: fix Oops in crash_shrink_memory()Pavan Naregundi1-3/+4
When crashkernel is not enabled, "echo 0 > /sys/kernel/kexec_crash_size" OOPSes the kernel in crash_shrink_memory. This happens when crash_shrink_memory tries to release the 'crashk_res' resource which are not reserved. Also value of "/sys/kernel/kexec_crash_size" shows as 1, which should be 0. This patch fixes the OOPS in crash_shrink_memory and shows "/sys/kernel/kexec_crash_size" as 0 when crash kernel memory is not reserved. Signed-off-by: Pavan Naregundi <pavan@linux.vnet.ibm.com> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Simon Horman <horms@verge.net.au> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29MAINTAINERS: update files and add maintainer for SAMSUNG ARM ARCHITECTURESKukjin Kim1-1/+3
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Ben Dooks <ben-linux@fluff.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29compiler-gcc.h: gcc-4.5 needs noclone and noinline on __naked functionsMikael Pettersson2-1/+13
A __naked function is defined in C but with a body completely implemented by asm(), including any prologue and epilogue. These asm() bodies expect standard calling conventions for parameter passing. Older GCCs implement that correctly, but 4.[56] currently do not, see GCC PR44290. In the Linux kernel this breaks ARM, causing most arch/arm/mm/copypage-*.c modules to get miscompiled, resulting in kernel crashes during bootup. Part of the kernel fix is to augment the __naked function attribute to also imply noinline and noclone. This patch implements that, and has been verified to fix boot failures with gcc-4.5 compiled 2.6.34 and 2.6.35-rc1 kernels. The patch is a no-op with older GCCs. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Khem Raj <raj.khem@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29flat: tweak default stack alignmentMike Frysinger1-5/+1
The recent commit 1f0ce8b3dd667dca7 ("mm: Move ARCH_SLAB_MINALIGN and ARCH_KMALLOC_MINALIGN to <linux/slab_def.h>") which moved the ARCH_SLAB_MINALIGN default into the global header inadvertently broke FLAT for a bunch of systems. Blackfin systems now fail on any FLAT exec with: Unable to read code+data+bss, errno 14 When your /init is a FLAT binary, obviously this can be annoying ;). This stems from the alignment usage in the FLAT loader. The behavior before was that FLAT would default to ARCH_SLAB_MINALIGN only if it was defined, and this was only defined by arches when they wanted a larger alignment value. Otherwise it'd default to pointer alignment. Arguably, this is kind of hokey that the FLAT is semi-abusing defines it shouldn't. So let's merge the two alignment requirements so the floor is never 0. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: David McCullough <davidm@snapgear.com> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: David Howells <dhowells@redhat.com> Cc: David Woodhouse <David.Woodhouse@intel.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29lxfb: fix incorrect __init annotationAndres Salomon1-8/+10
WARNING: vmlinux.o(.data+0x196e8): Section mismatch in reference from the variable lxfb_driver to the function .init.text:lxfb_probe() The variable lxfb_driver references the function __init lxfb_probe() This changes lxfb_probe and friends to use __devinit, and also adds __devexit to lxfb_remove. Signed-off-by: Andres Salomon <dilinger@queued.net> Cc: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29gxfb: fix incorrect __init annotationAndres Salomon1-8/+12
WARNING: vmlinux.o(.data+0x195d8): Section mismatch in reference from the variable gxfb_driver to the function .init.text:gxfb_probe() The variable gxfb_driver references the function __init gxfb_probe() This changes gxfb_probe and friends to use __devinit, and also adds __devexit to gxfb_remove. Signed-off-by: Andres Salomon <dilinger@queued.net> Cc: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29memcg: fix wake up in oom wait queueKAMEZAWA Hiroyuki1-1/+3
OOM-waitqueue should be waken up when oom_disable is canceled. This is a fix for 3c11ecf448eff8f1 ("memcg: oom kill disable and oom status"). How to test: Create a cgroup A... 1. set memory.limit and memory.memsw.limit to be small value 2. echo 1 > /cgroup/A/memory.oom_control, this disables oom-kill. 3. run a program which must cause OOM. A program executed in 3 will sleep by oom_waiqueue in memcg. Then, how to wake it up is problem. 1. echo 0 > /cgroup/A/memory.oom_control (enable OOM-killer) 2. echo big mem > /cgroup/A/memory.memsw.limit_in_bytes(allow more swap) etc.. Without the patch, a task in slept can not be waken up. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29nommu: add '[stack]' label to /proc/pid/maps outputMike Frysinger1-4/+16
Add support to the NOMMU /proc/pid/maps file to show which mapping is the stack of the original thread after execve. This is largely based on the MMU code. Subsidiary thread stacks are not indicated. For FDPIC, we now get: root:/> cat /proc/self/maps 02064000-02067ccc rw-p 0004d000 00:01 22 /bin/busybox 0206e000-0206f35c rw-p 00006000 00:01 295 /lib/ld-uClibc.so.0 025f0000-025f6f0c r-xs 00000000 00:01 295 /lib/ld-uClibc.so.0 02680000-026ba6b0 r-xs 00000000 00:01 297 /lib/libc.so.0 02700000-0274d384 r-xs 00000000 00:01 22 /bin/busybox 02816000-02817000 rw-p 00000000 00:00 0 02848000-0284c0d8 rw-p 00000000 00:00 0 02860000-02880000 rw-p 00000000 00:00 0 [stack] The semi-downside here is that for FLAT, we get: root:/> cat /proc/155/maps 029f0000-029f9000 rwxp 00000000 00:00 0 [stack] The reason being that FLAT combines a whole lot of stuff into one map (including the stack). But this isn't any worse than the current output (which is nothing), so screw it. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Howells <dhowells@redhat.com> Cc: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29genalloc: fix allocation from end of poolImre Deak1-1/+0
bitmap_find_next_zero_area requires the size of the bitmap, we instead passed the last suitable position. This made it impossible to allocate from the end of the pool. Fixes a regression introduced by 243797f59b748f679ab88d456fcc4f92236d724b ("genalloc: use bitmap_find_next_zero_area"). Signed-off-by: Imre Deak <imre.deak@nokia.com> Cc: Zygo Blaxell <zygo.blaxell@xandros.com> Cc: Tejun Heo <tj@kernel.org> Acked-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29fs: fix superblock iteration racenpiggin@suse.de3-0/+23
list_for_each_entry_safe is not suitable to protect against concurrent modification of the list. 6754af6 introduced a race in sb walking. list_for_each_entry can use the trick of pinning the current entry in the list before we drop and retake the lock because it subsequently follows cur->next. However list_for_each_entry_safe saves n=cur->next for following before entering the loop body, so when the lock is dropped, n may be deleted. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Christoph Hellwig <hch@infradead.org> Cc: John Stultz <johnstul@us.ibm.com> Cc: Frank Mayhar <fmayhar@google.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29omap iommu: update ducati mmu irq define nameKanigeri, Hari1-1/+1
2.6.34-rc6 kernel has the Ducati mmu irq define name changed, which is resulting in compilation error. Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
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