nfs: avoid dereferencing null pointer in initiate_bulk_draining

zeldovich · Trond Myklebust · commit ecf0eb9edbb6 · 2013-01-05T14:26:51.000-05:00
Fix an inverted null pointer check in initiate_bulk_draining().

Signed-off-by: Nickolai Zeldovich &lt;nickolai@csail.mit.edu&gt;
Signed-off-by: Trond Myklebust &lt;Trond.Myklebust@netapp.com&gt;
Cc: stable@vger.kernel.org [&gt;= 3.7]
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
@@ -206,7 +206,7 @@ static u32 initiate_bulk_draining(struct nfs_client *clp,
 
 		list_for_each_entry(lo, &server->layouts, plh_layouts) {
 			ino = igrab(lo->plh_inode);
-			if (ino)
+			if (!ino)
 				continue;
 			spin_lock(&ino->i_lock);
 			/* Is this layout in the process of being freed? */
