diff options
| -rw-r--r-- | src/dhcpv6-ia.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/dhcpv6-ia.c b/src/dhcpv6-ia.c index 888634f..fb50448 100644 --- a/src/dhcpv6-ia.c +++ b/src/dhcpv6-ia.c @@ -242,8 +242,12 @@ void dhcpv6_write_statefile(void) int fd = open(config.dhcp_statefile, O_CREAT | O_WRONLY | O_CLOEXEC, 0644); if (fd < 0) return; - - lockf(fd, F_LOCK, 0); + int ret; + ret = lockf(fd, F_LOCK, 0); + if (ret < 0) { + close(fd); + return; + } if (ftruncate(fd, 0) < 0) {} FILE *fp = fdopen(fd, "w"); |