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(parent: 6bbfb4c) | patch
xtensa: fix a6 and a7 handling in fast_syscall_xtensa
authorMax Filippov <jcmvbkbc@gmail.com>
Thu, 31 Jul 2014 18:40:57 +0000 (22:40 +0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 5 Oct 2014 20:40:57 +0000 (13:40 -0700)
commit7e5866d82dc2d896f6af0bc1af33fa007172ae83
treebb6db7d6340410e830020517836c7d715a789b84tree | snapshot
parent6bbfb4cad0bd9b6788ff9751fc774a7b501b03c0commit | diff
xtensa: fix a6 and a7 handling in fast_syscall_xtensa

commit d1b6ba82a50cecf94be540a3a153aa89d97511a0 upstream.

Remove restoring a6 on some return paths and instead modify and restore
it in a single place, using symbolic name.
Correctly restore a7 from PT_AREG7 in case of illegal a6 value.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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