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 09:35:53 -0800 |
| commit | d59892017c5f6de2fdee221f2a7788696e9f2cda (patch) | |
| tree | 62e1b10ea11e6bef06dad0064b0e49412ce004b3 | |
| parent | a847627709b3402163d99f7c6fda4a77bcd6b51b (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>
| -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 f0223166e76..8c50da86885 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -1869,8 +1869,10 @@ 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; |