From: Steven Whitehouse <swhiteho@redhat.com>
To: cluster-devel.redhat.com
Subject: [Cluster-devel] [GFS2] Fix incorrect error path in prepare_write()
Date: Tue, 17 Jul 2007 10:29:02 +0100 [thread overview]
Message-ID: <1184664542.8765.351.camel@quoit> (raw)
Hi,
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,
Steve.
---------------------------------------------------------------------
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index 26c8888..ebfaade 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:
reply other threads:[~2007-07-17 9:29 UTC|newest]
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