Messages in this thread Patch in this message | | | Date | Thu, 4 Aug 2016 02:08:37 -0700 | From | tip-bot for Arnaldo Carvalho de Melo <> | Subject | [tip:perf/urgent] perf target: str_error_r() always returns the buffer it receives |
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Commit-ID: ce92834407a465c25c0be1a4a0339c625e44c4db Gitweb: http://git.kernel.org/tip/ce92834407a465c25c0be1a4a0339c625e44c4db Author: Arnaldo Carvalho de Melo <acme@redhat.com> AuthorDate: Fri, 29 Jul 2016 11:54:35 -0300 Committer: Arnaldo Carvalho de Melo <acme@redhat.com> CommitDate: Fri, 29 Jul 2016 11:54:35 -0300
perf target: str_error_r() always returns the buffer it receives
So no need for checking if it uses the strerror_r() GNU variant error reporting mechanism, i.e. if it returns a pointer to a immutable string internal to glibc.
Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Fixes: c8b5f2c96d1b ("tools: Introduce str_error_r()") Link: http://lkml.kernel.org/n/tip-xr83cd4y4r3cn6tq6w4f59jb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/target.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/tools/perf/util/target.c b/tools/perf/util/target.c index 8cdcf46..21c4d9b 100644 --- a/tools/perf/util/target.c +++ b/tools/perf/util/target.c @@ -122,11 +122,7 @@ int target__strerror(struct target *target, int errnum, BUG_ON(buflen == 0); if (errnum >= 0) { - const char *err = str_error_r(errnum, buf, buflen); - - if (err != buf) - scnprintf(buf, buflen, "%s", err); - + str_error_r(errnum, buf, buflen); return 0; }
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