linux-kernel - [PATCH 2/2] perf record: reset event name when falling back to cpu-clock

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Date:	Tue,  8 May 2012 10:50:11 -0600
From:	David Ahern <dsahern@...il.com>
To:	acme@...stprotocols.net, linux-kernel@...r.kernel.org
Cc:	David Ahern <dsahern@...il.com>
Subject: [PATCH 2/2] perf record: reset event name when falling back to cpu-clock

perf-record defaults to the H/W cycles event and if it is
not supported falls back to cpu-clock. Reset the event name
as well.

Signed-off-by: David Ahern <dsahern@...il.com>
---
 tools/perf/builtin-record.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 42e2414..42d0fcf 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -252,6 +252,10 @@ try_again:
 						    "trying to fall back to cpu-clock-ticks\n");
 				attr->type = PERF_TYPE_SOFTWARE;
 				attr->config = PERF_COUNT_SW_CPU_CLOCK;
+				if (pos->name) {
+					free(pos->name);
+					pos->name = NULL;
+				}
 				goto try_again;
 			}
 
-- 
1.7.5.4

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