5d9946c3e5
Command 'perf record' calls:
cmd_report()
record__auxtrace_init()
auxtrace_record__init()
On s390 function auxtrace_record__init() returns random return value due
to missing initialization.
This sometime causes 'perf record' to exit immediately without error
message and creating a perf.data file.
Fix this by setting error the return code to zero before returning from
platform specific functions which may not set the error code in call
cases.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Link: http://lkml.kernel.org/r/20180423142940.21143-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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