sd-dhcp-client: check return from dhcp_option_append

diff --git a/src/libsystemd-network/sd-dhcp-client.c b/src/libsystemd-network/sd-dhcp-client.c
index 2a46624f2e8c328e41c520e3377c96dd15f1c92d..c1af6df13191352488b6715c95553846c2d17493 100644 (file)
--- a/src/libsystemd-network/sd-dhcp-client.c
+++ b/src/libsystemd-network/sd-dhcp-client.c
@@ -398,6 +398,8 @@ static int client_send_discover(sd_dhcp_client *client) {
 
         r = dhcp_option_append(&discover->dhcp, optlen, &optoffset, 0,
                                DHCP_OPTION_END, 0, NULL);
 
         r = dhcp_option_append(&discover->dhcp, optlen, &optoffset, 0,
                                DHCP_OPTION_END, 0, NULL);

+        if (r < 0)
+                return r;

 
         /* We currently ignore:
            The client SHOULD wait a random time between one and ten seconds to
 
         /* We currently ignore:
            The client SHOULD wait a random time between one and ten seconds to