diff options
Diffstat (limited to 'src/modules/systemlib/param/param.c')
| -rw-r--r-- | src/modules/systemlib/param/param.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/modules/systemlib/param/param.c b/src/modules/systemlib/param/param.c index 69a9bdf9b..24b52d1a9 100644 --- a/src/modules/systemlib/param/param.c +++ b/src/modules/systemlib/param/param.c @@ -505,8 +505,15 @@ param_get_default_file(void) int param_save_default(void) { + int result; + /* delete the file in case it exists */ - unlink(param_get_default_file()); + struct stat buffer; + if (stat(param_get_default_file(), &buffer) == 0) { + result = unlink(param_get_default_file()); + if (result != OK) + warnx("unlinking file %s failed.", param_get_default_file()); + } /* create the file */ int fd = open(param_get_default_file(), O_WRONLY | O_CREAT | O_EXCL); @@ -516,7 +523,7 @@ param_save_default(void) return -1; } - int result = param_export(fd, false); + result = param_export(fd, false); close(fd); if (result != 0) { |