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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2011-10-04 19:45:04 +0900 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2011-10-10 15:13:23 -0400 |
| commit | 44a56040a0037a845d5fa218dffde464579f0cab (patch) | |
| tree | 8a1f3397210cc2e8ebb223f7a2bd1fec642a6246 /tools/perf | |
| parent | 02ca1521ad404cf566e0075848f80d064c0a0503 (diff) | |
| download | linux-44a56040a0037a845d5fa218dffde464579f0cab.tar.gz linux-44a56040a0037a845d5fa218dffde464579f0cab.tar.bz2 linux-44a56040a0037a845d5fa218dffde464579f0cab.zip | |
perf probe: Fix to show correct error string
Fix perf probe to show correct error string when it
fails to delete an event. The write(2) returns -1
if failed, and errno stores real error number.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: stable@kernel.org
Link: http://lkml.kernel.org/r/20111004104504.14591.41266.stgit@fedora15
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/probe-event.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 1c7bfa5fe0a8..eb25900e2211 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -1956,8 +1956,10 @@ static int __del_trace_probe_event(int fd, struct str_node *ent) pr_debug("Writing event: %s\n", buf); ret = write(fd, buf, strlen(buf)); - if (ret < 0) + if (ret < 0) { + ret = -errno; goto error; + } printf("Remove event: %s\n", ent->s); return 0; |