perf probe: Fix to show correct error string

[firefly-linux-kernel-4.4.55.git] / tools / perf / util / probe-event.c

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index f0223166e76165cd1e25d86cade2d7bb8337c9c6..8c50da86885b8f63706ab34059f2298b5e3ae3db 100644 (file)
--- 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;