- 26 Sep, 2007 29 commits
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Eric Sandeen authored
commit 3d82abae in mainline. Convert asserts (BUGs) in dx_probe from bad on-disk data to recoverable errors with helpful warnings. With help catching other asserts from Duane Griffin <duaneg@dghda.com> Signed-off-by:
Eric Sandeen <sandeen@redhat.com> Acked-by:
Duane Griffin <duaneg@dghda.com> Acked-by:
Theodore Ts'o <tytso@mit.edu> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Alexey Dobriyan authored
commit 49af7ee1 in mainline. NFS unregisters sysctls only if V4 support is compiled in. However, sysctl table is not V4 specific, so unregister it always. Steps to reproduce: [build nfs.ko with CONFIG_NFS_V4=n] modrobe nfs rmmod nfs ls /proc/sys Unable to handle kernel paging request at ffffffff880661c0 RIP: [<ffffffff802af8e3>] proc_sys_readdir+0xd3/0x350 PGD 203067 PUD 207063 PMD 7e216067 PTE 0 Oops: 0000 [1] SMP CPU 1 Modules linked in: lockd nfs_acl sunrpc Pid: 3335, comm: ls Not tainted 2.6.23-rc3-bloat #2 RIP: 0010:[<ffffffff802af8e3>] [<ffffffff802af8e3>] proc_sys_readdir+0xd3/0x350 RSP: 0018:ffff81007fd93e78 EFLAGS: 00010286 RAX: ffffffff880661c0 RBX: ffffffff80466370 RCX: ffffffff880661c0 RDX: 00000000000014c0 RSI: ffff81007f3ad020 RDI: ffff81007efd8b40 RBP: 0000000000000018 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: ffffffff802a8570 R12: ffffffff880661c0 R13: ffff81007e219640 R14: ffff81007efd8b40 R15: ffff81007ded7280 FS: 00002ba25ef03060(0000) GS:ffff81007ff81258(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: ffffffff880661c0 CR3: 000000007dfaf000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process ls (pid: 3335, threadinfo ffff81007fd92000, task ffff81007d8a0000) Stack: ffff81007f3ad150 ffffffff80283f30 ffff81007fd93f48 ffff81007efd8b40 ffff81007ee00440 0000000422222222 0000000200035593 ffffffff88037e9a 2222222222222222 ffffffff80466500 ffff81007e416400 ffff81007e219640 Call Trace: [<ffffffff80283f30>] filldir+0x0/0xf0 [<ffffffff80283f30>] filldir+0x0/0xf0 [<ffffffff802840c7>] vfs_readdir+0xa7/0xc0 [<ffffffff80284376>] sys_getdents+0x96/0xe0 [<ffffffff8020bb3e>] system_call+0x7e/0x83 Code: 41 8b 14 24 85 d2 74 dc 49 8b 44 24 08 48 85 c0 74 e7 49 3b RIP [<ffffffff802af8e3>] proc_sys_readdir+0xd3/0x350 RSP <ffff81007fd93e78> CR2: ffffffff880661c0 Kernel panic - not syncing: Fatal exception Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Acked-by:
Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "J. Bruce Fields" <bfields@fieldses.org> Signed-off-by:
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Eric Sandeen authored
commit ef2b02d3 in mainline. The do_split() function for htree dir blocks is intended to split a leaf block to make room for a new entry. It sorts the entries in the original block by hash value, then moves the last half of the entries to the new block - without accounting for how much space this actually moves. (IOW, it moves half of the entry *count* not half of the entry *space*). If by chance we have both large & small entries, and we move only the smallest entries, and we have a large new entry to insert, we may not have created enough space for it. The patch below stores each record size when calculating the dx_map, and then walks the hash-sorted dx_map, calculating how many entries must be moved to more evenly split the existing entries between the old block and the new block, guaranteeing enough space for the new entry. The dx_map "offs" member is reduced to u16 so that the overall map size does not change - it is temporarily stored at the end of the new block, and if it grows too large it may be overwritten. By making offs and size both u16, we won't grow the map size. Also add a few comments to the functions involved. This fixes the testcase reported by hooanon05@yahoo.co.jp on the linux-ext4 list, "ext3 dir_index causes an error" Thanks to Andreas Dilger for discussing the problem & solution with me. Signed-off-by:
Andreas Dilger <adilger@clusterfs.com> Tested-by:
Junjiro Okajima <hooanon05@yahoo.co.jp> Cc: Theodore Ts'o <tytso@mit.edu> Cc: ext4 <linux-ext4@vger.kernel.org> Signed-off-by:
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Pavel Emelyanov authored
commit 0e2f6db8 in mainline. The inode->i_flock list contains the leases, flocks and posix locks in the specified order. However, the flocks are added in the head of this list thus hiding the leases from F_GETLEASE command, from time_out_leases() and other code that expects the leases to come first. The following example will demonstrate this: #define _GNU_SOURCE #include <unistd.h> #include <fcntl.h> #include <stdio.h> #include <sys/file.h> static void show_lease(int fd) { int res; res = fcntl(fd, F_GETLEASE); switch (res) { case F_RDLCK: printf("Read lease\n"); break; case F_WRLCK: printf("Write lease\n"); break; case F_UNLCK: printf("No leases\n"); break; default: printf("Some shit\n"); break; } } int main(int argc, char **argv) { int fd, res; fd = open(argv[1], O_RDONLY); if (fd == -1) { perror("Can't open file"); return 1; } res = fcntl(fd, F_SETLEASE, F_WRLCK); if (res == -1) { perror("Can't set lease"); return 1; } show_lease(fd); if (flock(fd, LOCK_SH) == -1) { perror("Can't flock shared"); return 1; } show_lease(fd); return 0; } The first call to show_lease() will show the write lease set, but the second will show no leases. Fix the flock adding so that the leases always stay in the head of this list. Found during making the flocks pid-namespaces aware. Signed-off-by:
Pavel Emelyanov <xemul@openvz.org> Acked-by:
"J. Bruce Fields" <bfields@fieldses.org> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Arnd Bergmann authored
commit 179c85ea in mainline. The futex list traversal on the compat side appears to have a bug. It's loop termination condition compares: while (compat_ptr(uentry) != &head->list) But that can't be right because "uentry" has the special "pi" indicator bit still potentially set at bit 0. This is cleared by fetch_robust_entry() into the "entry" return value. What this seems to mean is that the list won't terminate when list iteration gets back to the the head. And we'll also process the list head like a normal entry, which could cause all kinds of problems. So we should check for equality with "entry". That pointer is of the non-compat type so we have to do a little casting to keep the compiler and sparse happy. The same problem can in theory occur with the 'pending' variable, although that has not been reported from users so far. Based on the original patch from David Miller. Acked-by:
Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: David Miller <davem@davemloft.net> Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Stefan Richter authored
Minor regression since 2.6.22-rc1: If the experimental firewire-ohci driver instead of ohci1394 was loaded, iBook G3 and older PowerBooks refused to suspend. Same as commit 55111428 plus format string touch-ups from 8a8cea27, "firewire: missing newline in printk". Original patch description: Fixes (papers over) "Sleep problems with kernels >= 2.6.21 on powerpc", http://lkml.org/lkml/2007/8/25/155. The issue is that the FireWire controller's pci_dev.current_state of iBook G3 and presumably older PowerBooks is still in PCI_UNKNOWN instead of PCI_D0 when the firewire driver's .suspend method is called. Like it was suggested earlier in http://lkml.org/lkml/2006/10/24/13, we do not fail .suspend anymore if pci_set_power_state failed. Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by:
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Andrew Morton authored
commit 3558c9b3 in mainline. sparc32: drivers/block/DAC960.c: In function 'DAC960_V1_EnableMemoryMailboxInterface': drivers/block/DAC960.c:1168: error: 'DMA_32BIT_MASK' undeclared (first use in this function) drivers/block/DAC960.c:1168: error: (Each undeclared identifier is reported only Cc: <dac@conglom-o.org> Cc: Alessandro Polverini <alex@nibbles.it> Cc: Jeff Garzik <jeff@garzik.org> Cc: Matthew Wilcox <matthew@wil.cx> Signed-off-by:
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Matthew Wilcox authored
commit 868047fc in mainline. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=8942 Use PCI_DMA_* constants instead of own private definitions Fall back to 32-bit DMA mask if a 64-bit one fails Signed-off-by:
Matthew Wilcox <matthew@wil.cx> Acked-by:
Jeff Garzik <jeff@garzik.org> Tested-by:
Lars <polynomial-c@gmx.de> Cc: Alessandro Polverini <alex@nibbles.it> Cc: <dac@conglom-o.org> Signed-off-by:
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Andreas Gruenbacher authored
commit 1a1a1a75 in mainline. dput must be called before mntput here. Signed-off-by:
Andreas Gruenbacher <agruen@suse.de> Acked-By:
David Howells <dhowells@redhat.com> Signed-off-by:
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Andrew Morton authored
commit e4260197 in mainline. There is still some confusion and disagreement over what this interface should actually do. So it is best that we disable it in 2.6.23 until we get that fully sorted out. (sys_timerfd() was present in 2.6.22 but it was apparently broken, so here we assume that nobody is using it yet). Cc: Michael Kerrisk <mtk-manpages@gmx.net> Cc: Davide Libenzi <davidel@xmailserver.org> Acked-by:
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Wolfgang Walter authored
commit 9db619e6 in mainline. we upgraded the kernel of a nfs-server from 2.6.17.11 to 2.6.22.6. Since then we get the message lockd: too many open TCP sockets, consider increasing the number of nfsd threads lockd: last TCP connect from ^\\236^\É^D These random characters in the second line are caused by a bug in svc_tcp_accept. (Note: there are two previous __svc_print_addr(sin, buf, sizeof(buf)) calls in this function, either of which would initialize buf correctly; but both are inside "if"'s and are not necessarily executed. This is less obvious in the second case, which is inside a dprintk(), which is a macro which expands to an if statement.) Signed-off-by:
Wolfgang Walter <wolfgang.walter@studentenwerk.mhn.de> Signed-off-by:
J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by:
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Jens Axboe authored
This is a splice patch for 2.6.22 and 2.6.21 (and earlier, I did not check. Let me know if you still maintain older stable trees!). It fixes an infinite loop in do_splice_direct(), when there's either nothing to read or nothing to write and blocking doesn't help. It could be things like running out of disk space. We need to exit both for failure and zero return, or we could be going around forever. This got fixed in 2.6.23-git with commit 51a92c0f Herbert Poetzl <herbert@13thfloor.at> noticed this bug in 2.6.22, and has verified that this minimal fix works. Signed-off-by:
Jens Axboe <jens.axboe@oracle.com> Signed-off-by:
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Jean Delvare authored
Commit 85237f20 introduced the following warning: drivers/media/video/pwc/pwc-if.c: In function "pwc_video_close": drivers/media/video/pwc/pwc-if.c:1211: warning: "i" may be used uninitialized in this function This is true, and can cause a broken debug message to be logged. Here's a fix. Fix is already in Linus' tree for 2.6.23: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=7b9fbc3e30f785412a26819aa4daf0b6c27f6c53Signed-off-by:
Jean Delvare <khali@linux-fr.org> Signed-off-by:
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Jean Delvare authored
Fix an off-by-one error in the I/O region declaration of two hardware monitoring drivers (lm78 and w83781d.) We were requesting one extra port at the end of the region. This is a regression in 2.6.22 and could prevent other drivers from loading properly. Already applied to Linus' tree for 2.6.23: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=15bde2f1a8e819213f54314505a5a0509673109bSigned-off-by:
Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by:
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Steven Toth authored
(cherry picked from commit 48200bae) [PATCH] V4L: cx88: Avoid a NULL pointer dereference during mpeg_open() Bug: With a hardware encoder board installed as cx88[1] and a non-encoder boards installed as cx88[0], an OOPS is generated during cx8802_get_device() called from mpeg_open(). Signed-off-by:
Steven Toth <stoth@hauppauge.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by:
Michael Krufky <mkrufky@linuxtv.org> Signed-off-by:
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Jason Lunz authored
Changeset fc0e0197 from mainline. I've bisected the deadlock when many small appends are done on jffs2 down to this commit: commit 6fe6900e Author: Nick Piggin <npiggin@suse.de> Date: Sun May 6 14:49:04 2007 -0700 mm: make read_cache_page synchronous Ensure pages are uptodate after returning from read_cache_page, which allows us to cut out most of the filesystem-internal PageUptodate calls. I didn't have a great look down the call chains, but this appears to fixes 7 possible use-before uptodate in hfs, 2 in hfsplus, 1 in jfs, a few in ecryptfs, 1 in jffs2, and a possible cleared data overwritten with readpage in block2mtd. All depending on whether the filler is async and/or can return with a !uptodate page. It introduced a wait to read_cache_page, as well as a read_cache_page_async function equivalent to the old read_cache_page without any callers. Switching jffs2_gc_fetch_page to read_cache_page_async for the old behavior makes the deadlocks go away, but maybe reintroduces the use-before-uptodate problem? I don't understand the mm/fs interaction well enough to say. [It's fine. dwmw2.] Signed-off-by:
Jason Lunz <lunz@falooley.org> Signed-off-by:
David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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David Howells authored
changeset 48440e89 from mainline. Initialise s_flags in get_sb_mtd_aux() from the flags parameter. Signed-off-by:
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Adam Radford authored
[SCSI] 3w-9xxx: Fix dma mask setting Extracted from commit 0e78d158 The attached patch updates the 3ware 9000 driver: - Fix dma mask setting to fallback to 32-bit if 64-bit fails. Signed-off-by:
Adam Radford <linuxraid@amcc.com> Signed-off-by:
James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by:
Chuck Ebbert <cebbert@redhat.com> Signed-off-by:
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Kumar Gala authored
commit 0ee6c15e in mainline. When we flush register state for FP, Altivec, or SPE in flush_*_to_thread we need to respect the task_struct that the caller has passed to us. Most cases we are called with current, however sometimes (ptrace) we may be passed a different task_struct. This showed up when using gdbserver debugging a simple program that used floating point. When gdb tried to show the FP regs they all showed up as 0, because the child's FP registers were never properly flushed to memory. Signed-off-by:
Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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Zhao Yakui authored
commit 9f3119b7 in mainline. ACPI 1.0 used an RSDT with 32-bit physical addresses. ACPI 2.0 adds an XSDT with 32-bit physical addresses. An ACPI 2.0 aware OS is supposed to use the XSDT (when present) instead of the RSDT. However, several systems have failed because the XSDT contains NULL entries -- while it is missing pointers to needed tables, such as SSDTs. When we find an XSDT with NULL entries, discard it and use the ACPI 1.0 RSDT instead. http://bugzilla.kernel.org/show_bug.cgi?id=8630Signed-off-by:
Zhao Yakui <yakui.zhao@intel.com> Cc: Vincet Fortier <Vincent.Fortier1@EC.GC.CA> Signed-off-by:
Len Brown <len.brown@intel.com> Signed-off-by:
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Nathael Pajani authored
commit e5dd0115 in mainline. This patch fixes the order of list_add_tail() arguments in usb_store_new_id() so the list can have more than one single element. Signed-off-by:
Nathael Pajani <nathael.pajani@cpe.fr> Signed-off-by:
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Satyam Sharma authored
commit bec49477 in mainline. We want drivers/mtd/{mtdcore, mtdsuper, mtdpart}.c to be built and linked into the same mtd.ko module. Fix the Makefile to ensure this, and remove duplicate MODULE_ declarations in mtdpart.c, as mtdcore.c already has them. Signed-off-by:
Satyam Sharma <satyam@infradead.org> Signed-off-by:
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Roman Zippel authored
commit f82f3f94 in mainline. Avoid setting the value if the symbol doesn't need to be changed or can't be changed. Later choices may change the dependencies and thus the possible input range. make oldconfig from a 2.6.22 .config with CONFIG_HOTPLUG_CPU not set was in some configurations setting CONFIG_HOTPLUG_CPU=y without asking, even when there was no actual requirement for CONFIG_HOTPLUG_CPU. This was triggered by SUSPEND_SMP that does a select HOTPLUG_CPU. Signed-off-by:
Roman Zippel <zippel@linux-m68k.org> Tested-by:
Hugh Dickins <hugh@veritas.com> Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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Oleg Nesterov authored
commit 60187d27 in mainline. Spotted by taoyue <yue.tao@windriver.com> and Jeremy Katz <jeremy.katz@windriver.com>. collect_signal: sigqueue_free: list_del_init(&first->list); if (!list_empty(&q->list)) { // not taken } q->flags &= ~SIGQUEUE_PREALLOC; __sigqueue_free(first); __sigqueue_free(q); Now, __sigqueue_free() is called twice on the same "struct sigqueue" with the obviously bad implications. In particular, this double free breaks the array_cache->avail logic, so the same sigqueue could be "allocated" twice, and the bug can manifest itself via the "impossible" BUG_ON(!SIGQUEUE_PREALLOC) in sigqueue_free/send_sigqueue. Hopefully this can explain these mysterious bug-reports, see http://marc.info/?t=118766926500003 http://marc.info/?t=118466273000005 Alexey Dobriyan reports this patch makes the difference for the testcase, but nobody has an access to the application which opened the problems originally. Also, this patch removes tasklist lock/unlock, ->siglock is enough. Signed-off-by:
Oleg Nesterov <oleg@tv-sign.ru> Cc: taoyue <yue.tao@windriver.com> Cc: Jeremy Katz <jeremy.katz@windriver.com> Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com> Cc: Alexey Dobriyan <adobriyan@sw.ru> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Roland McGrath <roland@redhat.com> Signed-off-by:
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Oleg Nesterov authored
commit b07e35f9 in mainline tree Spotted by Marcin Kowalczyk <qrczak@knm.org.pl>. sys_setpgid(child) fails if the child was forked by sub-thread. Fix the "is it our child" check. The previous commit ee0acf90 was not complete. (this patch asks for the new same_thread_group() helper, but mainline doesn't have it yet). Signed-off-by:
Roland McGrath <roland@redhat.com> Tested-by:
"Marcin 'Qrczak' Kowalczyk" <qrczak@knm.org.pl> Signed-off-by:
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Trent Piepho authored
cherry picked from commit 6175e487 b2c2-flexcop: fix Airstar HD5000 tuning regression Git changeset 6bdcc6e6 dropped the stand-alone lgh06xf module, whose functionality was absorbed into the dvb-pll module. However, there was a minor difference between the code in lgh06xf and dvb-pll, which caused a regression in b2c2-flexcop devices using the LG-H06xF NIM. dvb-pll will probe for the presence of an i2c pll chip by performing a single byte read, the lgh06xf driver did not do this. Unfortunately, the code in flexcop-i2c.c does not currently support 1 byte or 0 byte reads as a probe. Such probes with the current code will always fail. In order to work around this problem, and restore proper functionality of the Airstar HD5000 device, this hack was created to make the probe appear to succeed. The single byte read in dvb_pll_attach is the only place where such a probe would ever occur, so this change is safe, and will not affect any other devices. Of course, if one knew how to actually perform the read operation, it would be better to go that route. In the meantime, however, we must apply this workaround, in order to prevent the regression that causes tuning to fail on the Airstar HD5000 ATSC device. Thanks to Jarod Wilson, who had originally reported this regression, and to Geoffrey Hausheer, whose original workaround patch led us to find the actual cause of the problem. Signed-off-by:
Trent Piepho <xyzzy@speakeasy.org> Cc: Geoffrey Hausheer <inli3epy93n@phracturedblue.com> Acked-by:
Jarod Wilson <jwilson@redhat.com> Signed-off-by:
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Andreas Arens authored
cherry picked from commit c545d6ad Update get_dvb_firmware script for the new location of the tda10046 firmware. The old location doesn't work anymore. Signed-off-by:
Andreas Arens <ari@goron.de> Signed-off-by:
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Michael Krufky authored
cherry picked from commit 302170a4 get_dvb_firmware: update script for new location of sp8870 firmware This url is no longer valid: http://www.technotrend.de/new/217g/tt_Premium_217g.zip Replace with: http://www.softwarepatch.pl/9999ccd06a4813cb827dbb0005071c71/tt_Premium_217g.zip Thanks-to: Tobias Stoeber <tobi@to-st.de> Signed-off-by:
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Hans Verkuil authored
cherry picked from commit c3624f99 ivtv: fix VIDIOC_S_FBUF support: new OSD values were never actually set. The values set with VIDIOC_S_FBUF were not actually used until the next VIDIOC_S_FMT. Fixed. Signed-off-by:
Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by:
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- 25 Sep, 2007 2 commits
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Greg Kroah-Hartman authored
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Takashi Iwai authored
changeset ccec6e2c in mainline. Use seq_file for the proc file read/write of snd-page-alloc module. This automatically fixes bugs in the old proc code. Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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- 21 Sep, 2007 2 commits
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Chris Wright authored
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Andi Kleen authored
Strictly it's only needed for eax. It actually does a little more than strictly needed -- the other registers are already zero extended. Also remove the now unnecessary and non functional compat task check in ptrace. This is CVE-2007-4573 Found by Wojciech Purczynski Signed-off-by:
Andi Kleen <ak@suse.de> Signed-off-by:
Chris Wright <chrisw@sous-sol.org>
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- 31 Aug, 2007 7 commits
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Greg Kroah-Hartman authored
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Kay Sievers authored
This fixes a regression for userspace programs that were relying on these events. Signed-off-by:
Kay Sievers <kay.sievers@vrfy.org> Cc: Andreas Jellinghaus <aj@ciphirelabs.com> Signed-off-by:
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Oliver Neukum authored
the pwc driver has a disconnect method that waits for user space to close the device. This opens up an opportunity for a DoS attack, blocking the USB subsystem and making khubd's task busy wait in kernel space. This patch shifts freeing resources to close if an opened device is disconnected. Signed-off-by:
Oliver Neukum <oneukum@suse.de> Signed-off-by:
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Alan Stern authored
This patch (as964) was suggested by Steffen Koepf. It makes usb_get_descriptor() retry on all errors other than ETIMEDOUT, instead of only on EPIPE. This helps with some devices. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Tejun Heo authored
RX790 can't do MSI like its predecessors. Disable MSI on RX790. Signed-off-by:
Tejun Heo <htejun@gmail.com> Signed-off-by:
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Tejun Heo authored
RD580 can't do MSI like its predecessors. Disable MSI on RD580. Signed-off-by:
Tejun Heo <teheo@suse.de> Signed-off-by:
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Tejun Heo authored
RS690 can't do MSI like its predecessors. Disable MSI on RS690. Signed-off-by:
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