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Subject[PATCH perf/core 3/8] [BUGFIX] perf probe: Fix to return 0 when positive value returned
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Fix to return 0 when positive value returned from probe command.

At least --vars can returns a positive value if it found a point.
----
# perf probe --vars vfs_read && echo succeeded! || echo failed!
Available variables at vfs_read
@<vfs_read+0>
char* buf
loff_t* pos
size_t count
struct file* file
failed!
----

This fixes above problem.
----
# perf probe --vars vfs_read && echo succeeded! || echo failed!
Available variables at vfs_read
@<vfs_read+0>
char* buf
loff_t* pos
size_t count
struct file* file
succeeded!
----

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
---
tools/perf/builtin-probe.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 53d475b..9c4cf5e 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -523,5 +523,5 @@ int cmd_probe(int argc, const char **argv, const char *prefix)
cleanup_params();
}

- return ret;
+ return ret < 0 ? ret : 0;
}


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