[Ocfs2-devel] [PATCH RESEND 2/2] ocfs2: add necessary check in case sb_getblk fails
Mark Fasheh
mfasheh at suse.de
Fri Sep 6 09:45:18 PDT 2013
Reviewed-by: Mark Fasheh <mfasheh at suse.de>
On Thu, Sep 05, 2013 at 04:28:55PM +0800, Rui Xiang wrote:
> Sb_getblk may retrun an err, so add a check for bh.
>
> Signed-off-by: Rui Xiang <rui.xiang at huawei.com>
> Reviewed-by: Jie Liu <jeff.liu at oracle.com>
> ---
> fs/ocfs2/refcounttree.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
> index 50c1796..22f3f19 100644
> --- a/fs/ocfs2/refcounttree.c
> +++ b/fs/ocfs2/refcounttree.c
> @@ -612,6 +612,11 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
> }
>
> new_bh = sb_getblk(inode->i_sb, first_blkno);
> + if (!new_bh) {
> + ret = -ENOMEM;
> + mlog_errno(ret);
> + goto out_commit;
> + }
> ocfs2_set_new_buffer_uptodate(&new_tree->rf_ci, new_bh);
>
> ret = ocfs2_journal_access_rb(handle, &new_tree->rf_ci, new_bh,
> --
> 1.8.2.2
>
>
--
Mark Fasheh
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