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| author | Florian Fainelli <f.fainelli@gmail.com> | 2017-02-28 21:48:29 -0800 |
|---|---|---|
| committer | Hans Dedecker <dedeckeh@gmail.com> | 2017-03-04 21:27:01 +0100 |
| commit | 9eac2a8963415e6a74c2fc13a3c8d05cd0f81d4d (patch) | |
| tree | d9d67127eb604bbd0a4e1e2d7d82ccc03cbe9757 /src/dhcpv6-ia.c | |
| parent | 1b630f8bc59978884c9caccebca3b6d8e9b045a1 (diff) | |
dhcpv6-ia: Check lockf return value
Check the lockf return value to fix the following warning/error:
/home/fainelli/dev/openwrt/trunk/build_dir/target-mipsel-linux-gnu_glibc/odhcpd-2017-02-21-1b630f8b/src/dhcpv6-ia.c: In function 'dhcpv6_write_statefile':
/home/fainelli/dev/openwrt/trunk/build_dir/target-mipsel-linux-gnu_glibc/odhcpd-2017-02-21-1b630f8b/src/dhcpv6-ia.c:246:8: error: ignoring return value of 'lockf', declared with attribute warn_unused_result [-Werror=unused-result]
lockf(fd, F_LOCK, 0);
^
cc1: all warnings being treated as errors
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Diffstat (limited to 'src/dhcpv6-ia.c')
| -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"); |