OpenCloudOS-Kernel/tools/perf/arch
Thomas Richter 5d9946c3e5 perf record: Fix s390 undefined record__auxtrace_init() return value
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>
2018-04-23 12:05:02 -03:00
..
alpha perf tools: Add empty Build files for architectures lacking them 2015-08-06 16:24:15 -03:00
arm coresight: Move to SPDX identifier 2018-04-19 12:29:41 -03:00
arm64 perf tools arm64: Add libdw DWARF post unwind support for ARM64 2018-03-16 13:53:46 -03:00
mips perf tools: Add empty Build files for architectures lacking them 2015-08-06 16:24:15 -03:00
parisc perf tools: Add empty Build files for architectures lacking them 2015-08-06 16:24:15 -03:00
powerpc perf powerpc: Generate system call table from asm/unistd.h 2018-02-16 14:55:48 -03:00
s390 perf record: Fix s390 undefined record__auxtrace_init() return value 2018-04-23 12:05:02 -03:00
sh License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sparc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
x86 tools/headers: Synchronize kernel ABI headers, v4.17-rc1 2018-04-17 09:47:39 -03:00
xtensa License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Build perf tools: Fix build with ARCH=x86_64 2017-06-14 15:44:29 -03:00
common.c perf env: Adopt perf_env__arch() from the annotate code 2017-12-27 12:15:52 -03:00
common.h perf env: Adopt perf_env__arch() from the annotate code 2017-12-27 12:15:52 -03:00