ctrl_cmd_parse: Make coverity FORWARD_NULL happy
The 'strtok_r' function requires passing a NULL as the first parameter
on subsequent calls in order to ensure the code picks up where it left
off on a previous call. However, Coverity doesn't quite realize this
and points out that if a NULL was passed in as the third argument it
would result in a possible NULL deref because the strtok_r function will
assign the third argument to the first in the call is NULL.
Change-Id: I7a9d08d0d4eae76a5207d285e32a25d1b384a57f
Fixes: Coverity CID 135186
diff --git a/src/ctrl/control_cmd.c b/src/ctrl/control_cmd.c
index 3dbcf8f..2cf66cf 100644
--- a/src/ctrl/control_cmd.c
+++ b/src/ctrl/control_cmd.c
@@ -299,6 +299,7 @@
msgb_put_u8(msg, 0);
str = (char *) msg->l2h;
+ OSMO_ASSERT(str);
tmp = strtok_r(str, " ", &saveptr);
if (!tmp) {
cmd->type = CTRL_TYPE_ERROR;