fix build warning (#2365)

* fix build warning * Update selfdrive/common/util.c Co-authored-by: Adeeb Shihadeh <adeebshihadeh@gmail.com> Co-authored-by: Adeeb Shihadeh <adeebshihadeh@gmail.com>
2020-10-20 13:44:24 +08:00 · 2020-10-20 13:44:24 +08:00 · 0bbd080a04
parent c85b3de400
commit 0bbd080a04
1 changed files with 1 additions and 1 deletions
--- a/selfdrive/common/util.c
+++ b/selfdrive/common/util.c
@ -52,7 +52,7 @@ int write_file(const char* path, const void* data, size_t size) {
  }
  ssize_t n = write(fd, data, size);
  close(fd);
-  return n == size ? 0 : -1;
+  return (n >= 0 && (size_t)n == size) ? 0 : -1;
 }

 void set_thread_name(const char* name) {