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openrisc: entry: Fix delay slot detection
authorStafford Horne <shorne@gmail.com>
Tue, 10 Jan 2017 14:30:23 +0000 (23:30 +0900)
committerStafford Horne <shorne@gmail.com>
Fri, 24 Feb 2017 19:31:06 +0000 (04:31 +0900)
commite6d20c55a4d94eca419f80f996133f523ecedfe0
tree4da9f421a8463946624b1aee5df2b9ff1bf5cc2ctree | snapshot
parent2ead7aba44e973b313fde0e39371363459cc1128commit | diff
openrisc: entry: Fix delay slot detection

Use execption SR stored in pt_regs for detection, the current SR is not
correct as the handler is running after return from exception.

Also, The code that checks for a delay slot uses a flag bitmask and then
wants to check if the result is not zero.  The test it implemented was
wrong.

Correct it by changing the test to check result against non zero.

Signed-off-by: Stafford Horne <shorne@gmail.com>
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