ceph: don't crash when passed bad mount options
This only happened when parse_extra_token was not passed
to ceph_parse_option() (hence, only happened in rbd).
Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index f6f2eeb..f3e4a13 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -249,7 +249,7 @@
continue;
err = -EINVAL;
token = match_token((char *)c, opt_tokens, argstr);
- if (token < 0) {
+ if (token < 0 && parse_extra_token) {
/* extra? */
err = parse_extra_token((char *)c, private);
if (err < 0) {