| Message ID | 51FA2702.5020903@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 08/01/2013 05:14 PM, Joseph Qi wrote: > In ocfs2_attach_refcount_tree() and ocfs2_duplicate_extent_list(), if > error occurs when calling ocfs2_get_clusters(), it will go with > unexpected behavior as local variables p_cluster, num_clusters and > ext_flags are declared without initialization. > > Signed-off-by: Joseph Qi <joseph.qi@huawei.com> > --- > fs/ocfs2/refcounttree.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c > index 998b17e..3589ec1 100644 > --- a/fs/ocfs2/refcounttree.c > +++ b/fs/ocfs2/refcounttree.c > @@ -3886,6 +3886,10 @@ static int ocfs2_attach_refcount_tree(struct > inode *inode, Line wrapped? > while (cpos < clusters) { > ret = ocfs2_get_clusters(inode, cpos, &p_cluster, > &num_clusters, &ext_flags); > + if (ret) { > + mlog_errno(ret); > + goto unlock; > + } > > if (p_cluster && !(ext_flags & OCFS2_EXT_REFCOUNTED)) { > ret = ocfs2_add_refcount_flag(inode, &di_et, > @@ -4057,6 +4061,10 @@ static int ocfs2_duplicate_extent_list(struct > inode *s_inode, > while (cpos < clusters) { > ret = ocfs2_get_clusters(s_inode, cpos, &p_cluster, > &num_clusters, &ext_flags); > + if (ret) { > + mlog_errno(ret); > + goto out; > + } > > if (p_cluster) { > ret = ocfs2_add_refcounted_extent(t_inode, &et,
On 2013/8/1 17:25, Jeff Liu wrote: > On 08/01/2013 05:14 PM, Joseph Qi wrote: > >> In ocfs2_attach_refcount_tree() and ocfs2_duplicate_extent_list(), if >> error occurs when calling ocfs2_get_clusters(), it will go with >> unexpected behavior as local variables p_cluster, num_clusters and >> ext_flags are declared without initialization. >> >> Signed-off-by: Joseph Qi <joseph.qi@huawei.com> >> --- >> fs/ocfs2/refcounttree.c | 8 ++++++++ >> 1 file changed, 8 insertions(+) >> >> diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c >> index 998b17e..3589ec1 100644 >> --- a/fs/ocfs2/refcounttree.c >> +++ b/fs/ocfs2/refcounttree.c >> @@ -3886,6 +3886,10 @@ static int ocfs2_attach_refcount_tree(struct >> inode *inode, > > Line wrapped? > >> while (cpos < clusters) { >> ret = ocfs2_get_clusters(inode, cpos, &p_cluster, >> &num_clusters, &ext_flags); >> + if (ret) { >> + mlog_errno(ret); >> + goto unlock; >> + } >> >> if (p_cluster && !(ext_flags & OCFS2_EXT_REFCOUNTED)) { >> ret = ocfs2_add_refcount_flag(inode, &di_et, >> @@ -4057,6 +4061,10 @@ static int ocfs2_duplicate_extent_list(struct >> inode *s_inode, >> while (cpos < clusters) { >> ret = ocfs2_get_clusters(s_inode, cpos, &p_cluster, >> &num_clusters, &ext_flags); >> + if (ret) { >> + mlog_errno(ret); >> + goto out; >> + } >> >> if (p_cluster) { >> ret = ocfs2_add_refcounted_extent(t_inode, &et, > > > Sorry, I will resend it.
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index 998b17e..3589ec1 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -3886,6 +3886,10 @@ static int ocfs2_attach_refcount_tree(struct inode *inode, while (cpos < clusters) { ret = ocfs2_get_clusters(inode, cpos, &p_cluster, &num_clusters, &ext_flags); + if (ret) { + mlog_errno(ret); + goto unlock; + } if (p_cluster && !(ext_flags & OCFS2_EXT_REFCOUNTED)) {
In ocfs2_attach_refcount_tree() and ocfs2_duplicate_extent_list(), if error occurs when calling ocfs2_get_clusters(), it will go with unexpected behavior as local variables p_cluster, num_clusters and ext_flags are declared without initialization. Signed-off-by: Joseph Qi <joseph.qi@huawei.com> --- fs/ocfs2/refcounttree.c | 8 ++++++++ 1 file changed, 8 insertions(+) ret = ocfs2_add_refcount_flag(inode, &di_et, @@ -4057,6 +4061,10 @@ static int ocfs2_duplicate_extent_list(struct inode *s_inode, while (cpos < clusters) { ret = ocfs2_get_clusters(s_inode, cpos, &p_cluster, &num_clusters, &ext_flags); + if (ret) { + mlog_errno(ret); + goto out; + } if (p_cluster) { ret = ocfs2_add_refcounted_extent(t_inode, &et,