nat: Please coverity and initialize the saveptr to NULL
Coverity complains about the saveptr used in the strtok_r. This
is not a bug because we pass a string as part of the first call
to strtok_r but it is easier to just initialize it.
Addresses: Coverity CID 1042323
diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c b/openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c
index 32ae068..6ff4541 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c
@@ -193,7 +193,7 @@
struct bsc_connection *bsc;
struct bsc_cmd_list *pending;
unsigned int nr;
- char *nr_str, *tmp, *saveptr;
+ char *nr_str, *tmp, *saveptr = NULL;
/* Skip over the beginning (bsc.) */
tmp = strtok_r(cmd->variable, ".", &saveptr);