diff options
| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2011-10-04 19:45:04 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-11 09:43:12 -0800 |
| commit | fa73b411b41b050e212a20fc33ab45f2eb781c24 (patch) | |
| tree | 368ae155b6e27801c7c9497c35d6ff71a2bf272b /tools | |
| parent | 4921487cb0a15e3fb28bc0b2410890f8fe7b161e (diff) | |
perf probe: Fix to show correct error string
commit 44a56040a0037a845d5fa218dffde464579f0cab upstream.
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>
Link: http://lkml.kernel.org/r/20111004104504.14591.41266.stgit@fedora15
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'tools')
| -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; |