[Ocfs2-devel] [PATCH] ocfs2: fix possible memory leak in dlm_process_recovery_data

[Li Zefan]

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On 2013/5/1 12:06, Qijiang (Joseph) wrote:
>   We create newlock each time in dlm_process_recovery_data, but we don't free it when it is bad, and then it will lead to memory leak.

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> 
> Signed-off-by: Joseph Qi <joseph.qi at huawei.com>
> 
> ---
>  fs/ocfs2/dlm/dlmrecovery.c |    6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
> index eeac97b..93de2e0 100644
> --- a/fs/ocfs2/dlm/dlmrecovery.c
> +++ b/fs/ocfs2/dlm/dlmrecovery.c
> @@ -1974,6 +1974,12 @@ skip_lvb:
>                  res->lockname.len, res->lockname.name, ml->node);
>             dlm_lockres_set_refmap_bit(dlm, res, ml->node);
>             added++;
> +       } else {
> +           /* should free newlock if it is bad */
> +           if (newlock) {
> +               dlm_lock_put(newlock);
> +               newlock = NULL;
> +           }
>         }
>         spin_unlock(&res->spinlock);
>     }
> --
> 1.7.9.7
> 
> 
>