Thiago Jung Bauermann 38d8184610 powerpc/perf/hv-24x7: Fix return value of hcalls
The H_GET_24X7_CATALOG_PAGE hcall can return a signed error code, so fix
this in the code.

The H_GET_24X7_DATA hcall can return a signed error code, so fix this in
the code. Also, don't truncate it to 32 bit to use as return value for
make_24x7_request. In case of error h_24x7_event_commit_txn passes that
return value to generic code, so it should be a proper errno. The other
caller of make_24x7_request is single_24x7_request, whose callers don't
actually care which error code is returned so they are not affected by this
change.

Finally, h_24x7_get_value doesn't use the error code from
single_24x7_request, so there's no need to store it.

Reviewed-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-07-02 20:40:32 +10:00
..
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2017-05-23 14:18:10 +02:00
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