From: swhiteho@redhat.com <swhiteho@redhat.com>
To: cluster-devel.redhat.com
Subject: [Cluster-devel] [PATCH] [GFS2] Fix incorrect error path in prepare_write()
Date: Tue, 14 Aug 2007 10:47:14 +0100 [thread overview]
Message-ID: <11870848591530-git-send-email-swhiteho@redhat.com> (raw)
In-Reply-To: <11870848365-git-send-email-swhiteho@redhat.com>
From: Steven Whitehouse <swhiteho@redhat.com>
The error path in prepare_write() was incorrect in the (very rare) event
that the transaction fails to start. The following prevents a NULL
pointer dereference,
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index ce90032..42a5f58 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -416,7 +416,7 @@ static int gfs2_prepare_write(struct file *file, struct page *page,
error = gfs2_trans_begin(sdp, rblocks, 0);
if (error)
- goto out;
+ goto out_trans_fail;
if (gfs2_is_stuffed(ip)) {
if (end > sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode)) {
@@ -434,6 +434,7 @@ prepare_write:
out:
if (error) {
gfs2_trans_end(sdp);
+out_trans_fail:
if (alloc_required) {
gfs2_inplace_release(ip);
out_qunlock:
--
1.5.1.2
WARNING: multiple messages have this Message-ID (diff)
From: swhiteho@redhat.com
To: linux-kernel@vger.kernel.org, cluster-devel@redhat.com
Cc: Steven Whitehouse <swhiteho@redhat.com>
Subject: [PATCH] [GFS2] Fix incorrect error path in prepare_write()
Date: Tue, 14 Aug 2007 10:47:14 +0100 [thread overview]
Message-ID: <11870848591530-git-send-email-swhiteho@redhat.com> (raw)
In-Reply-To: <11870848365-git-send-email-swhiteho@redhat.com>
From: Steven Whitehouse <swhiteho@redhat.com>
The error path in prepare_write() was incorrect in the (very rare) event
that the transaction fails to start. The following prevents a NULL
pointer dereference,
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index ce90032..42a5f58 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -416,7 +416,7 @@ static int gfs2_prepare_write(struct file *file, struct page *page,
error = gfs2_trans_begin(sdp, rblocks, 0);
if (error)
- goto out;
+ goto out_trans_fail;
if (gfs2_is_stuffed(ip)) {
if (end > sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode)) {
@@ -434,6 +434,7 @@ prepare_write:
out:
if (error) {
gfs2_trans_end(sdp);
+out_trans_fail:
if (alloc_required) {
gfs2_inplace_release(ip);
out_qunlock:
--
1.5.1.2
next prev parent reply other threads:[~2007-08-14 9:47 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-14 9:47 [Cluster-devel] [PATCH] [DLM] Clear othercon pointers when a connection is closed swhiteho
2007-08-14 9:47 ` swhiteho
2007-08-14 9:47 ` [Cluster-devel] [PATCH] [DLM] fix NULL ls usage swhiteho
2007-08-14 9:47 ` swhiteho
2007-08-14 9:47 ` [Cluster-devel] [PATCH] [DLM] zero unused parts of sockaddr_storage swhiteho
2007-08-14 9:47 ` swhiteho
2007-08-14 9:47 ` [Cluster-devel] [PATCH] [DLM] Fix memory leak in dlm_add_member() when dlm_node_weight() returns less than zero swhiteho
2007-08-14 9:47 ` swhiteho
2007-08-14 9:47 ` [Cluster-devel] [PATCH] [DLM] More othercon fixes swhiteho
2007-08-14 9:47 ` swhiteho
2007-08-14 9:47 ` [Cluster-devel] [PATCH] [DLM] fix basts for granted PR waiting CW swhiteho
2007-08-14 9:47 ` swhiteho
2007-08-14 9:47 ` [Cluster-devel] [PATCH] [GFS2] soft lockup detected in databuf_lo_before_commit swhiteho
2007-08-14 9:47 ` swhiteho
2007-08-14 9:47 ` [Cluster-devel] [PATCH] [GFS2] soft lockup in rgblk_search swhiteho
2007-08-14 9:47 ` swhiteho
2007-08-14 9:47 ` [Cluster-devel] [PATCH] [GFS2] Fix incorrect return code in rgrp.c swhiteho
2007-08-14 9:47 ` swhiteho
2007-08-14 9:47 ` swhiteho [this message]
2007-08-14 9:47 ` [PATCH] [GFS2] Fix incorrect error path in prepare_write() swhiteho
2007-08-14 9:47 ` [Cluster-devel] [PATCH] [GFS2] Fix setting of inherit jdata attr swhiteho
2007-08-14 9:47 ` swhiteho
2007-08-14 9:47 ` [Cluster-devel] [PATCH] [GFS2] Revert remounting w/o acl option leaves acls enabled swhiteho
2007-08-14 9:47 ` swhiteho
2007-08-14 10:08 ` [Cluster-devel] [GFS2/DLM] [0/12] Pre pull request patch posting Steven Whitehouse
2007-08-14 10:08 ` Steven Whitehouse
2007-08-14 16:44 ` [Cluster-devel] [GFS2/DLM] Pull request Steven Whitehouse
2007-08-14 16:44 ` Steven Whitehouse
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