diff options
| author | Tom Gundersen <teg@jklm.no> | 2014-09-17 19:00:55 +0200 |
|---|---|---|
| committer | Tom Gundersen <teg@jklm.no> | 2014-09-17 19:13:35 +0200 |
| commit | f414a269b378d526b8b26c5b52743360b43965ce (patch) | |
| tree | ff332528ea4a50f8a1ef89f6d699ca9a4d4494f8 /src/network/networkd-dhcp4.c | |
| parent | ff02f101cb7db516bf1732bb74c42cb3b6259af1 (diff) | |
networkd: dhcp4 - fix unchecked return value
Found by coverity. CID #1237529 and #1237528.
Diffstat (limited to 'src/network/networkd-dhcp4.c')
| -rw-r--r-- | src/network/networkd-dhcp4.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/src/network/networkd-dhcp4.c b/src/network/networkd-dhcp4.c index e0b3acad1b..e451af8643 100644 --- a/src/network/networkd-dhcp4.c +++ b/src/network/networkd-dhcp4.c @@ -178,7 +178,7 @@ static int dhcp_lease_lost(Link *link) { struct in_addr addr; struct in_addr netmask; struct in_addr gateway; - unsigned prefixlen; + unsigned prefixlen = 0; int r; assert(link); @@ -237,15 +237,18 @@ static int dhcp_lease_lost(Link *link) { } } - sd_dhcp_lease_get_address(link->dhcp_lease, &addr); - sd_dhcp_lease_get_netmask(link->dhcp_lease, &netmask); - prefixlen = in_addr_netmask_to_prefixlen(&netmask); + r = sd_dhcp_lease_get_address(link->dhcp_lease, &addr); + if (r >= 0) { + r = sd_dhcp_lease_get_netmask(link->dhcp_lease, &netmask); + if (r >= 0) + prefixlen = in_addr_netmask_to_prefixlen(&netmask); - address->family = AF_INET; - address->in_addr.in = addr; - address->prefixlen = prefixlen; + address->family = AF_INET; + address->in_addr.in = addr; + address->prefixlen = prefixlen; - address_drop(address, link, &link_address_drop_handler); + address_drop(address, link, &link_address_drop_handler); + } } if (link->network->dhcp_mtu) { |