Add error handling for write() to tracefs and ftruncate() on shared memory
to avoid ignoring errors.
Signed-off-by: Cheng-Yang Chou <yphbchou0911@xxxxxxxxx>
---
src/ptsematest/ptsematest.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/ptsematest/ptsematest.c b/src/ptsematest/ptsematest.c
index d211669..787909c 100644
--- a/src/ptsematest/ptsematest.c
+++ b/src/ptsematest/ptsematest.c
@@ -62,6 +62,7 @@ void *semathread(void *param)
cpu_set_t mask;
int policy = SCHED_FIFO;
struct sched_param schedp;
+ int ret;
memset(&schedp, 0, sizeof(schedp));
schedp.sched_priority = par->priority;
@@ -112,7 +113,10 @@ void *semathread(void *param)
int tracing_enabled =
open(tracing_enabled_file, O_WRONLY);
if (tracing_enabled >= 0) {
- write(tracing_enabled, "0", 1);
+ ret = write(tracing_enabled, "0", 1);
+ if (ret < 0)
+ fatal("Could not write to %s: %s\n",
+ tracing_enabled_file, strerror(errno));
close(tracing_enabled);
} else
fatal("Could not access %s\n",
--
2.48.1
