[PATCH perf/core v4 06/19] perf-probe: Let probe_file__add_event return 0 if succeeded

From: Masami Hiramatsu
Date: Tue Apr 26 2016 - 05:03:17 EST


Since other methods return 0 if succeeded (or filedesc),
let probe_file__add_event() return 0 instead of the length
of written bytes.

Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
---
tools/perf/util/probe-file.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index e3b3b92..3fe6214 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -220,8 +220,7 @@ int probe_file__add_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 (write(fd, buf, strlen(buf)) < (int)strlen(buf)) {
ret = -errno;
pr_warning("Failed to write event: %s\n",
strerror_r(errno, sbuf, sizeof(sbuf)));