[PATCH 13/21] perf trace: Simplify sys_exit return printing

From: Arnaldo Carvalho de Melo
Date: Wed Aug 28 2013 - 11:00:58 EST


From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

Avoiding multiple sc->fmt != NULL tests.

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-w28d1o3uslden0k57653kda7@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-trace.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 86568ed..9e23660 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -464,16 +464,19 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
fprintf(trace->output, "]: %s()", sc->name);
}

- if (ret < 0 && sc->fmt && sc->fmt->errmsg) {
+ if (sc->fmt == NULL) {
+signed_print:
+ fprintf(trace->output, ") = %d", ret);
+ } else if (ret < 0 && sc->fmt->errmsg) {
char bf[256];
const char *emsg = strerror_r(-ret, bf, sizeof(bf)),
*e = audit_errno_to_name(-ret);

fprintf(trace->output, ") = -1 %s %s", e, emsg);
- } else if (ret == 0 && sc->fmt && sc->fmt->timeout)
+ } else if (ret == 0 && sc->fmt->timeout)
fprintf(trace->output, ") = 0 Timeout");
else
- fprintf(trace->output, ") = %d", ret);
+ goto signed_print;

fputc('\n', trace->output);
out:
--
1.8.1.4

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