Ocfs2 devel - Jun 2017 - [PATCH] ocfs2: free 'dummy_sc' in sc_fop_release() in case of memory leak

'sd->dbg_sock' is malloc in sc_common_open(), but not freed at the
end
of sc_fop_release().

Signed-off-by: Jun Piao <piaojun at huawei.com>
---
 fs/ocfs2/cluster/netdebug.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c
index 564c504..74a21f6 100644
--- a/fs/ocfs2/cluster/netdebug.c
+++ b/fs/ocfs2/cluster/netdebug.c
@@ -426,6 +426,7 @@ static int sc_fop_release(struct inode *inode, struct file
*file)
 	struct o2net_sock_container *dummy_sc = sd->dbg_sock;

 	o2net_debug_del_sc(dummy_sc);
+	kfree(dummy_sc);
 	return seq_release_private(inode, file);
 }

--

On 17/6/25 20:46, piaojun wrote:
> 'sd->dbg_sock' is malloc in sc_common_open(), but not freed at
the end
> of sc_fop_release().
> 
> Signed-off-by: Jun Piao <piaojun at huawei.com>
Looks good.
Reviewed-by: Joseph Qi <jiangqi903 at gmail.com>

Thanks,
Joseph
> ---
>  fs/ocfs2/cluster/netdebug.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c
> index 564c504..74a21f6 100644
> --- a/fs/ocfs2/cluster/netdebug.c
> +++ b/fs/ocfs2/cluster/netdebug.c
> @@ -426,6 +426,7 @@ static int sc_fop_release(struct inode *inode, struct
file *file)
>  	struct o2net_sock_container *dummy_sc = sd->dbg_sock;
> 
>  	o2net_debug_del_sc(dummy_sc);
> +	kfree(dummy_sc);
>  	return seq_release_private(inode, file);
>  }
>