From: Yehuda Sadeh <yehuda@hq.newdream.net>
Date: Thu, 30 Sep 2010 18:58:31 +0000 (-0700)
Subject: ceph: don't crash when passed bad mount options
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=010e3b48fca57920557d2b80b83f8b2899fb5d1e;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

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 f6f2eebc076..f3e4a13fea0 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -249,7 +249,7 @@ int ceph_parse_options(struct ceph_options **popt, char *options,
 			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) {