linux/arch/openrisc/kernel
Eric W. Biederman 500d583005 signal/openrisc: Fix do_unaligned_access to send the proper signal
While reviewing the signal sending on openrisc the do_unaligned_access
function stood out because it is obviously wrong.  A comment about an
si_code set above when actually si_code is never set.  Leading to a
random si_code being sent to userspace in the event of an unaligned
access.

Looking further SIGBUS BUS_ADRALN is the proper pair of signal and
si_code to send for an unaligned access. That is what other
architectures do and what is required by posix.

Given that do_unaligned_access is broken in a way that no one can be
relying on it on openrisc fix the code to just do the right thing.

Cc: stable@vger.kernel.org
Fixes: 769a8a9622 ("OpenRISC: Traps")
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: openrisc@lists.librecores.org
Acked-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2018-01-12 14:20:02 -06:00
..
.gitignore openrisc: Add .gitignore 2017-02-25 04:14:36 +09:00
asm-offsets.c
dma.c openrisc: initial SMP support 2017-11-03 14:01:13 +09:00
entry.S openrisc: enable LOCKDEP_SUPPORT and irqflags tracing 2017-11-03 14:01:16 +09:00
head.S openrisc: sleep instead of spin on secondary wait 2017-11-03 14:01:14 +09:00
irq.c
Makefile OpenRISC updates for v4.15 2017-11-13 12:12:00 -08:00
module.c
or32_ksyms.c openrisc: Switch to use export.h instead of module.h 2017-05-15 22:02:33 +09:00
process.c OpenRISC fixes for 4.13 2017-07-07 13:58:49 -07:00
prom.c
ptrace.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
setup.c openrisc: initial SMP support 2017-11-03 14:01:13 +09:00
signal.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
smp.c openrisc: fix possible deadlock scenario during timer sync 2017-11-03 14:01:17 +09:00
stacktrace.c openrisc: support framepointers and STACKTRACE_SUPPORT 2017-11-03 14:01:15 +09:00
sync-timer.c openrisc: add tick timer multi-core sync logic 2017-11-03 14:01:16 +09:00
sys_call_table.c
time.c openrisc: add tick timer multi-core sync logic 2017-11-03 14:01:16 +09:00
traps.c signal/openrisc: Fix do_unaligned_access to send the proper signal 2018-01-12 14:20:02 -06:00
unwinder.c openrisc: support framepointers and STACKTRACE_SUPPORT 2017-11-03 14:01:15 +09:00
vmlinux.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vmlinux.lds.S scripts/spelling.txt: add "aligment" pattern and fix typo instances 2017-02-27 18:43:46 -08:00