From: Steven Whitehouse <swhiteho@redhat.com>
To: cluster-devel.redhat.com
Subject: [Cluster-devel] [PATCH 1/7] GFS2: Fix an unchecked error from gfs2_rs_alloc
Date: Wed, 7 Nov 2012 10:15:53 +0000 [thread overview]
Message-ID: <1352283359-3314-2-git-send-email-swhiteho@redhat.com> (raw)
In-Reply-To: <1352283359-3314-1-git-send-email-swhiteho@redhat.com>
From: Andrew Price <anprice@redhat.com>
Check the return value of gfs2_rs_alloc(ip) and avoid a possible null
pointer dereference.
Signed-off-by: Andrew Price <anprice@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 40c4b0d..c5af8e1 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -497,8 +497,11 @@ int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid)
struct gfs2_quota_data **qd;
int error;
- if (ip->i_res == NULL)
- gfs2_rs_alloc(ip);
+ if (ip->i_res == NULL) {
+ error = gfs2_rs_alloc(ip);
+ if (error)
+ return error;
+ }
qd = ip->i_res->rs_qa_qd;
--
1.7.4
next prev parent reply other threads:[~2012-11-07 10:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-07 10:15 [Cluster-devel] GFS2: Pre-pull patch posting (fixes) Steven Whitehouse
2012-11-07 10:15 ` Steven Whitehouse [this message]
2012-11-07 10:15 ` [Cluster-devel] [PATCH 2/7] GFS2: Fix possible null pointer deref in gfs2_rs_alloc Steven Whitehouse
2012-11-07 10:15 ` [Cluster-devel] [PATCH 3/7] GFS2: Clean up some unused assignments Steven Whitehouse
2012-11-07 10:15 ` [Cluster-devel] [PATCH 4/7] GFS2: Require user to provide argument for FITRIM Steven Whitehouse
2012-11-07 10:15 ` [Cluster-devel] [PATCH 5/7] GFS2: Fix FITRIM argument handling Steven Whitehouse
2012-11-07 10:15 ` [Cluster-devel] [PATCH 6/7] GFS2: Don't call file_accessed() with a shared glock Steven Whitehouse
2012-11-07 10:15 ` [Cluster-devel] [PATCH 7/7] GFS2: Test bufdata with buffer locked and gfs2_log_lock held Steven Whitehouse
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