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authorEric W. Biederman <ebiederm@xmission.com>2017-08-01 04:16:47 -0500
committerEric W. Biederman <ebiederm@xmission.com>2018-01-12 14:20:02 -0600
commit500d58300571b6602341b041f97c082a461ef994 (patch)
treeecc074f35e8b9851a974fc7903fce9a2157a805c /arch/openrisc/include
parent0e88bb002a9b2ee8cc3cc9478ce2dc126f849696 (diff)
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>
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