tipc/bearer: Prevent NULL pointer dereference

Signed-off-by: Phil Sutter <phil@nwl.cc>

diff --git a/tipc/bearer.c b/tipc/bearer.c
index c3d4491f8f6ef97d1c013981e3db3cb24dea670d..0d84570150624dd9a6ee945edf1d9f54a8f90856 100644 (file)
--- a/tipc/bearer.c
+++ b/tipc/bearer.c
@@ -439,7 +439,7 @@ static int cmd_bearer_enable(struct nlmsghdr *nlh, const struct cmd *cmd,
                return err;
 
        opt = get_opt(opts, "media");
-       if (strcmp(opt->val, "udp") == 0) {
+       if (opt && strcmp(opt->val, "udp") == 0) {
                err = nl_add_udp_enable_opts(nlh, opts, cmdl);
                if (err)
                        return err;