perf record: Improve write_output error message

[karo-tx-linux.git] / tools / perf / builtin-record.c

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 92ca5419073b960f64111b1a176ec94340c0b108..d269dfa3ab0813ba2d60576d9ea9735c383224f0 100644 (file)
--- 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)
                int ret = write(rec->output, buf, size);
 
                if (ret < 0) {
-                       pr_err("failed to write\n");
+                       pr_err("failed to write perf data, error: %m\n");
                        return -1;
                }