perf probe: Propagate error code when write(2) failed

[cascardo/linux.git] / tools / perf / util / probe-event.c

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 7f9b863..94a717b 100644 (file)
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -2052,9 +2052,11 @@ static int write_probe_trace_event(int fd, struct probe_trace_event *tev)
        pr_debug("Writing event: %s\n", buf);
        if (!probe_event_dry_run) {
                ret = write(fd, buf, strlen(buf));
-               if (ret <= 0)
+               if (ret <= 0) {
+                       ret = -errno;
                        pr_warning("Failed to write event: %s\n",
                                   strerror_r(errno, sbuf, sizeof(sbuf)));
+               }
        }
        free(buf);
        return ret;