James Hogan dd2f83263d MIPS: Fix mips_atomic_set() retry condition ...

commit 2ec420b26f upstream.

The inline asm retry check in the MIPS_ATOMIC_SET operation of the
sysmips system call has been backwards since commit f1e39a4a61 ("MIPS:
Rewrite sysmips(MIPS_ATOMIC_SET, ...) in C with inline assembler")
merged in v2.6.32, resulting in the non R10000_LLSC_WAR case retrying
until the operation was inatomic, before returning the new value that
was probably just written multiple times instead of the old value.

Invert the branch condition to fix that particular issue.

Fixes: f1e39a4a61 ("MIPS: Rewrite sysmips(MIPS_ATOMIC_SET, ...) in C with inline assembler")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16148/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-07-27 15:08:03 -07:00

..

alpha

osf_wait4(): fix infoleak

2017-05-25 15:44:47 +02:00

arc

mm: larger stack guard gap, between vmas

2017-06-24 07:11:18 +02:00

arm

arm: move ELF_ET_DYN_BASE to 4MB

2017-07-21 07:42:21 +02:00

arm64

ARM64: dts: marvell: armada37xx: Fix timer interrupt specifiers

2017-07-21 07:42:22 +02:00

avr32

Merge branch 'akpm' (patches from Andrew)

2016-10-07 21:38:00 -07:00

blackfin

ptrace: Don't allow accessing an undumpable mm

2017-01-06 10:40:13 +01:00

c6x

c6x/ptrace: Remove useless PTRACE_SETREGSET implementation

2017-03-31 10:31:46 +02:00

cris

cris: Only build flash rescue image if CONFIG_ETRAX_AXISFLASHMAP is selected

2017-01-12 11:39:24 +01:00

frv

mm: larger stack guard gap, between vmas

2017-06-24 07:11:18 +02:00

h8300

h8300/ptrace: Fix incorrect register transfer count

2017-03-31 10:31:46 +02:00

hexagon

nmi_backtrace: generate one-line reports for idle cpus

2016-10-07 18:46:30 -07:00

ia64

ptrace: Don't allow accessing an undumpable mm

2017-01-06 10:40:13 +01:00

m32r

mm: replace access_process_vm() write parameter with gup_flags

2016-10-19 08:31:25 -07:00

m68k

m68k: Fix ndelay() macro

2016-10-30 10:13:55 +01:00

metag

metag/uaccess: Check access_ok in strncpy_from_user

2017-05-25 15:44:46 +02:00

microblaze

Merge branch 'work.uaccess2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2016-10-11 23:38:39 -07:00

mips

MIPS: Fix mips_atomic_set() retry condition

2017-07-27 15:08:03 -07:00

mn10300

mn10300: fix build error of missing fpu_save()

2017-06-17 06:41:56 +02:00

nios2

nios2: reserve boot memory for device tree

2017-04-12 12:41:14 +02:00

openrisc

openrisc: Define __ro_after_init to avoid crash

2016-11-06 08:01:12 -08:00

parisc

parisc/mm: Ensure IRQs are off in switch_mm()

2017-07-21 07:42:20 +02:00

powerpc

powerpc/mm/radix: Properly clear process table entry

2017-07-27 15:08:00 -07:00

s390

s390/syscalls: Fix out of bounds arguments access

2017-07-27 15:08:02 -07:00

score

Merge branch 'gup_flag-cleanups'

2016-10-19 08:39:47 -07:00

sh

mm: larger stack guard gap, between vmas

2017-06-24 07:11:18 +02:00

sparc

sparc64: Zero pages on allocation for mondo and error queues.

2017-07-05 14:40:19 +02:00

tile

mm: larger stack guard gap, between vmas

2017-06-24 07:11:18 +02:00

um

um: Fix to call read_initrd after init_bootmem

2017-05-25 15:44:47 +02:00

unicore32

unicore32: use simpler API for random address requests

2016-10-11 15:06:32 -07:00

x86

x86/xen: allow userspace access during hypercalls

2017-07-27 15:08:01 -07:00

xtensa

mm: larger stack guard gap, between vmas

2017-06-24 07:11:18 +02:00

.gitignore

…

Kconfig

Merge tag 'gcc-plugins-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2016-10-15 10:03:15 -07:00