Allow for parameters added with the JP_OPT flag to not exist.

That's why the flag exists in the first place.

MFC after:	1 week

1 files changed, 3 insertions, 4 deletions

diff --git a/usr.sbin/jls/jls.c b/usr.sbin/jls/jls.c
index 8e5512d73351..b1e28fbd1362 100644
--- a/usr.sbin/jls/jls.c
+++ b/usr.sbin/jls/jls.c
@@ -294,10 +294,8 @@ add_param(const char *name, void *value, size_t valuelen,
 		param->jp_flags |= flags;
 		return param - params;
 	}
-	if (jailparam_init(param, name) < 0)
-		errx(1, "%s", jail_errmsg);
-	param->jp_flags = flags;
-	if ((value != NULL ? jailparam_import_raw(param, value, valuelen)
+	if (jailparam_init(param, name) < 0 ||
+	    (value != NULL ? jailparam_import_raw(param, value, valuelen)
 	     : jailparam_import(param, value)) < 0) {
 		if (flags & JP_OPT) {
 			nparams--;
@@ -305,6 +303,7 @@ add_param(const char *name, void *value, size_t valuelen,
 		}
 		errx(1, "%s", jail_errmsg);
 	}
+	param->jp_flags = flags;
 	return param - params;
 }