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(parent: 649aa24) | patch
parisc: Avoid zeroing gr[0] in fixup_exception()
authorHelge Deller <deller@gmx.de>
Thu, 8 Jun 2017 20:06:54 +0000 (22:06 +0200)
committerHelge Deller <deller@gmx.de>
Fri, 9 Jun 2017 09:34:53 +0000 (11:34 +0200)
commitb752c7b20709e0ecee0f7d4ef6ef82fcc27408b6
treea0f2fb9d866aaab13ece90dbef2872925295cd8ctree | snapshot
parent649aa24254e85bf6bd7807dd372d083707852b1fcommit | diff
parisc: Avoid zeroing gr[0] in fixup_exception()

Register gr[0] holds the PSW in interrupt context. It's absolutely
unlikely that the compiler will use register zero in a get_user() call,
but better BUG on such a case in fixup_exception() anyway.

Signed-off-by: Helge Deller <deller@gmx.de>
arch/parisc/mm/fault.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git