[tip:perf/core] perf tools: Move parse_events error printing to parse_events_options

[tip-bot for Andi Kleen <ak@linux.intel.com>]

Commit-ID:  9175ce1f1244edd9f4d39605aa06ce5b0a50b8e0
Gitweb:     http://git.kernel.org/tip/9175ce1f1244edd9f4d39605aa06ce5b0a50b8e0
Author:     Andi Kleen <ak@linux.intel.com>
AuthorDate: Fri, 26 Oct 2012 13:30:06 -0700
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Sun, 28 Oct 2012 11:29:52 -0200

perf tools: Move parse_events error printing to parse_events_options

The callers of parse_events usually have their own error handling.  Move
the fprintf for a bad event to parse_events_options, which is the only
one who should need it.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1351283415-13170-25-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/parse-events.c |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 3a3efcf..c0b785b 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -827,8 +827,6 @@ int parse_events(struct perf_evlist *evlist, const char *str,
 	 * Both call perf_evlist__delete in case of error, so we dont
 	 * need to bother.
 	 */
-	fprintf(stderr, "invalid or unsupported event: '%s'\n", str);
-	fprintf(stderr, "Run 'perf list' for a list of valid events\n");
 	return ret;
 }
 
@@ -836,7 +834,13 @@ int parse_events_option(const struct option *opt, const char *str,
 			int unset __maybe_unused)
 {
 	struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
-	return parse_events(evlist, str, unset);
+	int ret = parse_events(evlist, str, unset);
+
+	if (ret) {
+		fprintf(stderr, "invalid or unsupported event: '%s'\n", str);
+		fprintf(stderr, "Run 'perf list' for a list of valid events\n");
+	}
+	return ret;
 }
 
 int parse_filter(const struct option *opt, const char *str,