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authorAdrian Hunter <adrian.hunter@intel.com>2013-10-18 08:29:00 -0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-10-21 10:19:06 -0400
commit4f624685f92719565981eb6f8d9195bb578522a3 (patch)
tree9a762801fea149864e3bb6643daf07fbb7cc0d49 /tools/perf/builtin-record.c
parentdd44bc6be05e4a948124053c8105cfa581177554 (diff)
perf record: Improve write_output error message
Improve the error message from write_output() to say what failed to write and give the error number. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1382099356-4918-4-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-record.c')
-rw-r--r--tools/perf/builtin-record.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 92ca5419073b..d269dfa3ab08 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -88,7 +88,7 @@ static int write_output(struct perf_record *rec, void *buf, size_t size)
88 int ret = write(rec->output, buf, size); 88 int ret = write(rec->output, buf, size);
89 89
90 if (ret < 0) { 90 if (ret < 0) {
91 pr_err("failed to write\n"); 91 pr_err("failed to write perf data, error: %m\n");
92 return -1; 92 return -1;
93 } 93 }
94 94