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| author | Eric W. Biederman <ebiederm@xmission.com> | 2017-08-01 12:16:47 +0300 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2018-01-12 23:20:02 +0300 |
| commit | 500d58300571b6602341b041f97c082a461ef994 (patch) | |
| tree | ecc074f35e8b9851a974fc7903fce9a2157a805c /arch/openrisc/kernel/prom.c | |
| parent | 0e88bb002a9b2ee8cc3cc9478ce2dc126f849696 (diff) | |
| download | linux-500d58300571b6602341b041f97c082a461ef994.tar.xz | |
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: 769a8a96229e ("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>
Diffstat (limited to 'arch/openrisc/kernel/prom.c')
0 files changed, 0 insertions, 0 deletions