Martin Schwidefsky d9fcf2a1cb s390: fix in-kernel program checks ...

A program check inside the kernel takes a slightly different path in
entry.S compare to a normal user fault. A recent change moved the store
of the breaking event address into the path taken for in-kernel program
checks as well, but %r14 has not been setup to point to the correct
location. A wild store is the consequence.

Move the store of the breaking event address to the code path for
user space faults.

Fixes: 34525e1f7e ("s390: store breaking event address only for program checks")
Reported-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2017-03-01 09:59:27 +01:00

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